Question

What is the solution(s) to the equation 5a2 - 44 = 81?

A
+25
B
-5
55
D
1125

Answer 1

B

Explanation:

5a^2 - 44 = 81 Add 44 to both sides

5a^2 = 81 + 44 Collect like terms

5a^2 = 125 Divide both sides by 5

a^2 = 125/5

a^2 = 25 Take the square root of both sides

√a^2 = √25

a = +5

a = -5

The answer is B