Question

Which of the following are solutions to the following equation?

Answer 1

Answer:

x=-7

x=7

Step-by-step 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