Question

(a^2+12a+35) by (a+7)

Answer 1

Here's your answer

= a^2 + 12a + 35
= a^2 + 5a + 7a + 35
= a (a + 5) +7 (a + 5)
= (a + 7)(a + 5)

So, dividing (a + 7)(a + 5) by (a +7)

= (a + 7)(a + 5) ÷ (a + 7)
= (a + 5)

Hope it helps you