Question
Solve the inequality
x∈(−∞,−54125)∪(54125,+∞)
Evaluate
∣x∣×7x2−5x6<0
Find the domain
More Steps

Evaluate
∣x∣×7=0
Multiply the terms
7∣x∣=0
Rewrite the expression
∣x∣=0
Evaluate the logic
x=0
∣x∣×7x2−5x6<0,x=0
Multiply the terms
7∣x∣x2−5x6<0
Separate the inequality into 2 possible cases
{x2−5x6>07∣x∣<0{x2−5x6<07∣x∣>0
Solve the inequality
More Steps

Evaluate
x2−5x6>0
Factor the expression
x2(1−5x4)>0
Separate the inequality into 2 possible cases
{x2>01−5x4>0{x2<01−5x4<0
Solve the inequality
More Steps

Evaluate
x2>0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is true for any value of x,except when x2=0
x2=0
The only way a power can be 0 is when the base equals 0
x=0
Exclude the impossible values of x
x=0
{x=01−5x4>0{x2<01−5x4<0
Solve the inequality
More Steps

Evaluate
1−5x4>0
Rewrite the expression
−5x4>−1
Change the signs on both sides of the inequality and flip the inequality sign
5x4<1
Divide both sides
55x4<51
Divide the numbers
x4<51
Take the 4-th root on both sides of the inequality
4x4<451
Calculate
∣x∣<54125
Separate the inequality into 2 possible cases
{x<54125x>−54125
Find the intersection
−54125<x<54125
{x=0−54125<x<54125{x2<01−5x4<0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is false for any value of x
{x=0−54125<x<54125{x∈/R1−5x4<0
Solve the inequality
More Steps

Evaluate
1−5x4<0
Rewrite the expression
−5x4<−1
Change the signs on both sides of the inequality and flip the inequality sign
5x4>1
Divide both sides
55x4>51
Divide the numbers
x4>51
Take the 4-th root on both sides of the inequality
4x4>451
Calculate
∣x∣>54125
Separate the inequality into 2 possible cases
x>54125x<−54125
Find the union
x∈(−∞,−54125)∪(54125,+∞)
{x=0−54125<x<54125{x∈/Rx∈(−∞,−54125)∪(54125,+∞)
Find the intersection
x∈(−54125,0)∪(0,54125){x∈/Rx∈(−∞,−54125)∪(54125,+∞)
Find the intersection
x∈(−54125,0)∪(0,54125)x∈/R
Find the union
x∈(−54125,0)∪(0,54125)
{x∈(−54125,0)∪(0,54125)7∣x∣<0{x2−5x6<07∣x∣>0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is false for any value of x
{x∈(−54125,0)∪(0,54125)x∈/R{x2−5x6<07∣x∣>0
Solve the inequality
More Steps

Evaluate
x2−5x6<0
Factor the expression
x2(1−5x4)<0
Separate the inequality into 2 possible cases
{x2>01−5x4<0{x2<01−5x4>0
Solve the inequality
More Steps

Evaluate
x2>0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is true for any value of x,except when x2=0
x2=0
The only way a power can be 0 is when the base equals 0
x=0
Exclude the impossible values of x
x=0
{x=01−5x4<0{x2<01−5x4>0
Solve the inequality
More Steps

Evaluate
1−5x4<0
Rewrite the expression
−5x4<−1
Change the signs on both sides of the inequality and flip the inequality sign
5x4>1
Divide both sides
55x4>51
Divide the numbers
x4>51
Take the 4-th root on both sides of the inequality
4x4>451
Calculate
∣x∣>54125
Separate the inequality into 2 possible cases
x>54125x<−54125
Find the union
x∈(−∞,−54125)∪(54125,+∞)
{x=0x∈(−∞,−54125)∪(54125,+∞){x2<01−5x4>0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is false for any value of x
{x=0x∈(−∞,−54125)∪(54125,+∞){x∈/R1−5x4>0
Solve the inequality
More Steps

Evaluate
1−5x4>0
Rewrite the expression
−5x4>−1
Change the signs on both sides of the inequality and flip the inequality sign
5x4<1
Divide both sides
55x4<51
Divide the numbers
x4<51
Take the 4-th root on both sides of the inequality
4x4<451
Calculate
∣x∣<54125
Separate the inequality into 2 possible cases
{x<54125x>−54125
Find the intersection
−54125<x<54125
{x=0x∈(−∞,−54125)∪(54125,+∞){x∈/R−54125<x<54125
Find the intersection
x∈(−∞,−54125)∪(54125,+∞){x∈/R−54125<x<54125
Find the intersection
x∈(−∞,−54125)∪(54125,+∞)x∈/R
Find the union
x∈(−∞,−54125)∪(54125,+∞)
{x∈(−54125,0)∪(0,54125)x∈/R{x∈(−∞,−54125)∪(54125,+∞)7∣x∣>0
Solve the inequality
More Steps

Evaluate
7∣x∣>0
Since the left-hand side is always positive or 0,and the right-hand side is always 0,the statement is true for any value of x,except when 7∣x∣=0
7∣x∣=0
Rewrite the expression
∣x∣=0
Evaluate
x=0
Exclude the impossible values of x
x=0
{x∈(−54125,0)∪(0,54125)x∈/R{x∈(−∞,−54125)∪(54125,+∞)x=0
Find the intersection
x∈/R{x∈(−∞,−54125)∪(54125,+∞)x=0
Find the intersection
x∈/Rx∈(−∞,−54125)∪(54125,+∞)
Find the union
x∈(−∞,−54125)∪(54125,+∞)
Check if the solution is in the defined range
x∈(−∞,−54125)∪(54125,+∞),x=0
Solution
x∈(−∞,−54125)∪(54125,+∞)
Show Solution
