Question

6. What are the solutions for p2 - 16 = 0 ?
A) {-4,4} B) {4}
C) {-8, 8} D) {8}

Answer 1

A

Explanation:

Given

p² - 16 = 0 ( add 16 to both sides )

p² = 16 ( take the square root of both sides )

p = ±
`√(16)` = ± 4

Thus solution is { - 4, 4 } → A