(a-3)²-(a+3)(a-3) factorise
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Step-by-step explanation:
(a-3)²-(a+3)(a-3)
(a-3){(a-3)-(a+3)}
-6(a-3)
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\left(a-3\right)^{2}-1(a+3)(a-3)(a−3)2−1(a+3)(a−3)
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