Question

Factresation of p² - 4 is​

Answer 1

Answer:

(p -2)(p + 2)

Step-by-step explanation:

p² - 4

= (p)² - (2)²

= (p -2)(p + 2)

Answer 2

Answer:

(p-2) (p+2)

Step-by-step explanation:

p²- 4 = p² + 2p - 2p - 4

(I used 2p-2p because it has no value as it is equal to 0 and 2 is a factor of 4.)

= p(p+2) - 2(p+2)

= (p-2) (p+2)

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Above answer is also correct but if there is a number which is not a perfect square root then that formula will not work.