Question

How do i do x^2 - 40= 60

Answer 1

Simplifying:
x^{2} + -40 = 60

Reorder the terms:
-40 + x^{2} = 60

Solving:
-40 + x^{2} = 60

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '40' to each side of the equation.
-40 + 40 + x^{2} = 60 + 40

Combine like terms: -40 + 40 = 0
0 + x^{2} = 60 + 40
x^{2} = 60 + 40

Combine like terms: 60 + 40 = 100 x^{2} = 100

Simplifying x^{2} = 100

Take the square root of each side: x = {-10, 10}

Hope This Helped! :3

Answer 2

Add 40 to both sides which equals x^2=100. So now you find the square root of 100, which equals 10. So therefore x=10