Question

Solve the following equation by factorisation p²-9=0​

Answer 1

Answer:

3, -3

Step-by-step explanation:

p²-9=0

p²=9

p=√9

p=±3

∴ p = +3, -3

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Answer 2

Answer:

p = +3 or p = -3

Step-by-step explanation:

p^2 - 9 = 0

p^2 - 3^2 = 0

(p + 3)(p - 3) = 0

Thus, p = +3 or p = -3

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