Question

Which of the following are solutions to the following equation?

2x^2–98=0
Check all that apply.​

Answer 1

x=-7

x=7

Explanation:

we have

`2x^(2)-98=0`

Solve for x

Adds 98 both sides

`2x^(2)-98+98=0+98`

`2x^(2)=98`

Divide by 2 both sides

`2x^(2)/2=98/2`

`x^(2)=49`

take square root both sides

`x=\pm7`

therefore

The solutions are

x=-7

x=7