Question

Example 5. Factorise: (p - q) (2p + 3q) + (p - q)(p + q + 3)
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Answer 1

Step-by-step explanation:

(p-q)(2p+3q) + (p-q)(p+q+3)

=(2p²-3q²) + (p²-3q²)

=3p²-6q²

=3-6(p-q)²

-3p²+3q²