Question

factorise the following
7a²+7a=42​

Answer 1

Answer:

7a(a+1) =42

a(a+1) =6

${a}^{2} + a - 6 = 0 \\ {a}^{2} + 3a - 2a - 6 = 0 \\ a(a + 3) - 2(a + 3) =0 \\ (a - 2)(a + 3) = 0$

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