Question

Factorise the expression p? - q?
O (+) (p + )
O (p - q) (p -9)
оооо
(1 + 9)
O (p+q) (p-a)​

Answer 1

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Factorise form of :

⇒p² – q²

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by using identity

⇒a² – b² = (a + b) (a – b)

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⇒(p + q) (p – q) .

★ option "4" is correct . ★

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