Question

What are the solutions of this equation 16-2x^2=-64

Answer 1

x = ± 2
`√(10)`

Explanation:

Given

16 - 2x² = - 64 ( subtract 16 from both sides )

- 2x² = - 80 ( divide both sides by - 2 )

x² = 40 ( take the square root of both sides )

x = ±
`√(40)` = ±
`√(4(10))` = ± 2
`√(10)`