Question
Solve the equation
x1=−43,x2=43
Alternative Form
x1≈−1.316074,x2≈1.316074
Evaluate
105=31x(7x×x)x×15
Remove the parentheses
105=31x×7x×x×x×15
Simplify
More Steps

Evaluate
31x×7x×x×x×15
Rewrite the expression in exponential form
31x4×7×15
Multiply the terms
More Steps

Evaluate
31×7×15
Multiply the numbers
37×15
Reduce the numbers
7×5
Multiply the numbers
35
35x4
105=35x4
Swap the sides of the equation
35x4=105
Divide both sides
3535x4=35105
Divide the numbers
x4=35105
Divide the numbers
More Steps

Evaluate
35105
Reduce the numbers
13
Calculate
3
x4=3
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±43
Separate the equation into 2 possible cases
x=43x=−43
Solution
x1=−43,x2=43
Alternative Form
x1≈−1.316074,x2≈1.316074
Show Solution
