formula of binomial
[tex](2x + 5) and (3 + x)[/tex]
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1 thought on “formula of binomial<br />[tex](2x + 5) and (3 + x)[/tex]<br />​”

1. ◆formula of binomial

   [tex](2x + 5)(3 + x)[/tex]

   [tex] \\ \\ \\ [/tex]

   [tex] \large{(2x + 5)(3 + x)} \\ = (6x + 2x {}^{2} + 15 + 5x )\\ = 2x {}^{2} + 11x + 15 [/tex]

   [tex]=2x²+(6+5)x+15 \\ =2x²+6x+5x+15 \\ =2x(x+3)+5(x+3) \\ =(x+3)(2x+5)[/tex]

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