Find the following products: (x+4)(x+7) - Vidyadip

Question

Find the following products:
$(x+4)(x+7)$

✓

Answer

Here, we will use the identity $(x+a)(x+b)=x^2+(a+b) x+a b$.
$(x+4)(x+7)$
$=x^2+(4+7) x+4 \times 7$
$=x^2+11 x+28$

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