Question
Solve the inequality
983109−1<x≤5
Alternative Form
x∈(983109−1,5]
Evaluate
5−x<x×7
Find the domain
More Steps

Evaluate
5−x≥0
Move the constant to the right side
−x≥0−5
Removing 0 doesn't change the value,so remove it from the expression
−x≥−5
Change the signs on both sides of the inequality and flip the inequality sign
x≤5
5−x<x×7,x≤5
Use the commutative property to reorder the terms
5−x<7x
Separate the inequality into 2 possible cases
5−x<7x,7x≥05−x<7x,7x<0
Solve the inequality
More Steps

Solve the inequality
5−x<7x
Square both sides of the inequality
5−x<(7x)2
Evaluate the power
More Steps

Evaluate
(7x)2
To raise a product to a power,raise each factor to that power
72x2
Evaluate the power
49x2
5−x<49x2
Move the expression to the left side
5−x−49x2<0
Move the constant to the right side
−x−49x2<0−5
Add the terms
−x−49x2<−5
Evaluate
x2+491x>495
Add the same value to both sides
x2+491x+96041>495+96041
Evaluate
x2+491x+96041>9604981
Evaluate
(x+981)2>9604981
Take the 2-th root on both sides of the inequality
(x+981)2>9604981
Calculate
x+981>983109
Separate the inequality into 2 possible cases
x+981>983109x+981<−983109
Calculate
More Steps

Evaluate
x+981>983109
Move the constant to the right side
x>983109−981
Write all numerators above the common denominator
x>983109−1
x>983109−1x+981<−983109
Calculate
More Steps

Evaluate
x+981<−983109
Move the constant to the right side
x<−983109−981
Subtract the numbers
x<−983109+1
x>983109−1x<−983109+1
Find the union
x∈(−∞,−983109+1)∪(983109−1,+∞)
x∈(−∞,−983109+1)∪(983109−1,+∞),7x≥05−x<7x,7x<0
Solve the inequality
x∈(−∞,−983109+1)∪(983109−1,+∞),x≥05−x<7x,7x<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∈(−∞,−983109+1)∪(983109−1,+∞),x≥0x∈∅,7x<0
Solve the inequality
x∈(−∞,−983109+1)∪(983109−1,+∞),x≥0x∈∅,x<0
Find the intersection
x>983109−1x∈∅,x<0
Find the intersection
x>983109−1x∈∅
Find the union
x>983109−1
Check if the solution is in the defined range
x>983109−1,x≤5
Solution
983109−1<x≤5
Alternative Form
x∈(983109−1,5]
Show Solution
