Question
Solve the inequality
Solve for x
Solve for X
X>8,x∈RX<−8,x∈R
Evaluate
X2(−x2−64)≤64(−x2−64)
Calculate
More Steps

Evaluate
X2(−x2−64)
Apply the distributive property
X2(−x2)−X2×64
Use the commutative property to reorder the terms
−X2x2−X2×64
Use the commutative property to reorder the terms
−X2x2−64X2
−X2x2−64X2=64(−x2−64)
Calculate
More Steps

Evaluate
64(−x2−64)
Apply the distributive property
64(−x2)−64×64
Multiply the numbers
−64x2−64×64
Multiply the numbers
−64x2−4096
−X2x2−64X2=−64x2−4096
Move the expression to the left side
−X2x2−64X2−(−64x2−4096)≤0
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−X2x2−64X2+64x2+4096≤0
Collect like terms by calculating the sum or difference of their coefficients
(−X2+64)x2−64X2+4096≤0
Move the constant to the right side
(−X2+64)x2≤64X2−4096
Divide both sides
−X2+64(−X2+64)x2≤−X2+6464X2−4096
Divide the numbers
x2≤−X2+6464X2−4096
Divide the numbers
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Evaluate
−X2+6464X2−4096
Rewrite the expression
−X2+64(X2−64)×64
Reduce the fraction
−164
Calculate
−64
x2≤−64
Rewrite the inequalities
{x2≤−6464−X2>0{x2≥−6464−X2<0
Since the left-hand side is always positive or 0,and the right-hand side is always negative,the statement is false for any value of x
{x∈/R64−X2>0{x2≥−6464−X2<0
Calculate
More Steps

Calculate
64−X2>0
Rewrite the expression
−X2>−64
Change the signs on both sides of the inequality and flip the inequality sign
X2<64
Take the 2-th root on both sides of the inequality
X2<64
Calculate
∣X∣<8
Separate the inequality into 2 possible cases
{X<8X>−8
Find the intersection
−8<X<8
{x∈/R−8<X<8{x2≥−6464−X2<0
Since the left-hand side is always positive or 0,and the right-hand side is always negative,the statement is true for any value of x
{x∈/R−8<X<8{x∈R64−X2<0
Calculate
More Steps

Calculate
64−X2<0
Rewrite the expression
−X2<−64
Change the signs on both sides of the inequality and flip the inequality sign
X2>64
Take the 2-th root on both sides of the inequality
X2>64
Calculate
∣X∣>8
Separate the inequality into 2 possible cases
X>8X<−8
Find the union
X∈(−∞,−8)∪(8,+∞)
{x∈/R−8<X<8{x∈RX∈(−∞,−8)∪(8,+∞)
Calculate
More Steps

Evaluate the logic
{x∈/R−8<X<8
Find the intersection
{−8<X<8x∈/R
Calculate
(X,x)∈/R2
(X,x)∈/R2{x∈RX∈(−∞,−8)∪(8,+∞)
Calculate
(X,x)∈/R2{X>8x∈R{X<−8x∈R
Rearrange the terms
{X>8x∈R{X<−8x∈R
Solution
X>8,x∈RX<−8,x∈R
Show Solution
