Question

Expand (x + 7) (x+8) by using identity
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Answer 1

Step-by-step explanation:

(x+a)(x+b) = x² + x(a+b) + ab

(x+7)(x+8) = x² + x(13) + 56

= x² + 13x + 56

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Answer 2

$\huge\mathfrak\purple{Answer!}$

$\large\bold{This~is~equal~to~the~equation:}$

$\large\sf{(x+a)(x+b)=x^2+(a+b)x+ab}$

$\large\bold{Where:}$

$\large\sf{x=x}$

$\large\sf{a=7}$

$\large\sf{b=8}$

$\small\sf{ }$

$\large\implies\sf{x^2+(7+8)x+(7×8)}$

$\large\implies\sf{{\underline{\underline{x^2+15x+56}}}}$

$\small\sf{ }$

$\large\bold{Be~Brainly!}$

$\small\sf{ }$

$\huge\bold\purple{Brainliest~Please!}$