Question

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

Answer 1

Answer:

x = ± 2$\sqrt{10}$

Step-by-step explanation:

given

40 - x² = 0 ( add x² to both sides )

40 = x² or

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

x = ± $\sqrt{40}$ = ± $\sqrt{4(10)}$ = ± 2$\sqrt{10}$