Question

Solve the equation. 8x2 – 4 = 28



4, –4

2, –2

16, –16

8, –8

Answer 1

Hello,

Your answer would be 2, -2.

$8x^2 - 4 = 28$

$8x^2-4+4=28+4$

$8x^2 = 32$

$\frac{8x^2}{8}= \frac{32}{8}$

$x^2 = 4$

x = +/4 

x = 2 or x = -2

2 , -2 would be the answer! :)


Mark Brainliest if this helped you :)

Answer 2

its 2,-2............