Question
Solve the equation
x1=−2484,x2=2484
Alternative Form
x1≈−1.5137,x2≈1.5137
Evaluate
126=3x4×8
Multiply the terms
126=24x4
Swap the sides of the equation
24x4=126
Divide both sides
2424x4=24126
Divide the numbers
x4=24126
Cancel out the common factor 6
x4=421
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±4421
Simplify the expression
More Steps

Evaluate
4421
To take a root of a fraction,take the root of the numerator and denominator separately
44421
Simplify the radical expression
More Steps

Evaluate
44
Write the number in exponential form with the base of 2
422
Reduce the index of the radical and exponent with 2
2
2421
Multiply by the Conjugate
2×2421×2
Multiply the numbers
More Steps

Evaluate
421×2
Use na=mnam to expand the expression
421×422
The product of roots with the same index is equal to the root of the product
421×22
Calculate the product
484
2×2484
When a square root of an expression is multiplied by itself,the result is that expression
2484
x=±2484
Separate the equation into 2 possible cases
x=2484x=−2484
Solution
x1=−2484,x2=2484
Alternative Form
x1≈−1.5137,x2≈1.5137
Show Solution
