Question

Fctorize: (m+n)²+(m+n)-42
please solve this step by step! i will make you a brainlieast!!!!

Answer 1

Answer:

(m+n+7)(m+n-6)

Step-by-step explanation:

(m+n)²+(m+n)-42

suppose, m+n = a

a²+a-42

= a²+(7-6)a-42

= a²+7a-6a-42

= a(a+7)-6(a+7)

= (a+7)(a-6)

= (m+n+7)(m+n-6)

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