Question

What are some solution(s) to the quadratic equation 40 - x^2 = 0

Answer 1

x = ± 2
`√(10)`

Explanation:

given

40 - x² = 0 ( add x² to both sides )

40 = x² or

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

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