Question

How to solve 2x2=100 in quadratic equation?

Answer 1

Answer:

Simplifying

2x2 + -100 = 0

Reorder the terms:

-100 + 2x2 = 0

Solving

-100 + 2x2 = 0

Solving for variable 'x'.

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

Add '100' to each side of the equation.

-100 + 100 + 2x2 = 0 + 100

Combine like terms: -100 + 100 = 0

0 + 2x2 = 0 + 100

2x2 = 0 + 100

Combine like terms: 0 + 100 = 100

2x2 = 100

Divide each side by '2'.

x2 = 50

Simplifying

x2 = 50

Take the square root of each side:

x = {-7.071067812, 7.071067812}