Question

question 1
solve for y.
$5a^2 = 320$
select each correct answer
$8\sqrt{5}$
$8$
$0$
$-8$
$320$
$-8\sqrt{5}$

Explanation:

Step1: Isolate \(a^2\)

Divide both sides of \(5a^2 = 320\) by 5:
\(a^2=\frac{320}{5}=64\)

Step2: Solve for \(a\)

Take square roots of both sides:
\(a = \pm\sqrt{64}=\pm8\)

Answer:

B. 8, D. -8