Question

What is the solution set to the equation 4x2 – 16 = 0?

Answer 1

2

Explanation:

add 16 to zero

4x2=16

Divide 4x by 2 and 16 by two

4x=8

divide 8 by 4

x=2

Answer 2

x = ± 2

Explanation:

Given

4x² - 16 = 0 ( add 16 to both sides )

4x² = 16 ( divide both sides by 4 )

x² = 4 ( take the square root of both sides )

x = ±
`√(4)` = ± 2

solutions are x = - 2, x = 2