Question
Solve the equation
x1=−43,x2=43
Alternative Form
x1≈−1.316074,x2≈1.316074
Evaluate
(x4)2=9
Simplify
More Steps

Evaluate
(x4)2
Multiply the exponents
x4×2
Multiply the numbers
x8
x8=9
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±89
Simplify the expression
More Steps

Evaluate
89
Write the number in exponential form with the base of 3
832
Reduce the index of the radical and exponent with 2
43
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
