Question

Divide ( x + 7x +12) by (x+4).
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Answer 1

$\huge{\mathcal{\blue{\underline{Answer}}}}$

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

$\huge{\mathcal{\blue{\implies{\underline{(x+3)}}}}}$