find the hcf of your following polynomials( step-by-step explanations)
a²+a-42 and a²-2a-24
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Step-by-step explanation:
a²+a-42
a^2 + a + 42
a^2 + 7a - 6a + 42
a(a+7) - 6(a+7)
= (a - 6) ( a + 7)
a²-2a-24
a^2 + 6a - 4a - 24
a (a + 6) - 4(a + 6)
= (a-4) (a+6)
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