Fctorize: (m+n)²+(m+n)-42
please solve this step by step! i will make you a brainlieast!
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Answer:
correct answer is 1/ m+n...
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Step-by-step explanation:
let (m + n) = x
=> x² + x - 42
=> x² + 7x - 6x - 42
=> x(x + 7) - 6(x + 7)
=> (x - 6) (x + 7)
=> (m + n - 6) (m + n + 7)
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