Question

factorise x^2+7x+12 by splitting the middle term​

Answer 1

Answer:

(x+4)(x+3)

Step-by-step explanation:

$x {}^{2} + 7x + 12 \\ = x {}^{2} + 4x + 3x + 12 \\ = x(x + 4) + 3(x + 4) \\ = (x + 4)(x + 3)$