How do you multiply $(x + 1) (x + 2)$ $(x + 1)(x + 2)$ ?

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How do you multiply $(x + 1) (x + 2)$ $(x + 1)(x + 2)$ ?

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Answer 1 · 2016-07-12T16:29:39

$x^{2} + 3 x + 2$ $x^2 + 3x + 2$

Explanation:

Rule of FOILING

$(a + b) (c + d) = a c + a d + b c + b d$ $(a + b)(c + d) = ac + ad+bc+bd$

Method (FOILING)

$(x + 1) (x + 2) = (x) (x) + (x) (2) + (1) (x) + (2) (1)$ $(x+1)(x+2) = (x)(x)+(x)(2)+(1)(x)+(2)(1)$

$x^{2} + 2 x + x + 2$ $x^2 + 2x + x + 2$

$x^{2} + 3 x + 2$ $x^2 + 3x + 2$

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How do you multiply $(x + 1) (x + 2)$ $(x + 1)(x + 2)$ ?

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How do you multiply $(x + 1) (x + 2)$ $(x + 1)(x + 2)$ ?