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Calculadora FOIL
Aplicar FOIL passo a passo
A calculadora multiplicará dois binômios usando o método FOIL, com as etapas mostradas.
Sua entrada
Multiplique $$$\left(2 x + 1\right) \left(5 x + 7\right)$$$ usando FOIL.
Solução
$$$\left({\color{red}\left(2 x\right)} + {\color{purple}\left(1\right)}\right) \left({\color{green}\left(5 x\right)} + {\color{blue}\left(7\right)}\right) = \underbrace{{\color{red}\left(2 x\right)} {\color{green}\left(5 x\right)}}_{\text{Primeiro}} + \underbrace{{\color{red}\left(2 x\right)} {\color{blue}\left(7\right)}}_{\text{Exterior}} + \underbrace{{\color{purple}\left(1\right)} {\color{green}\left(5 x\right)}}_{\text{Interno}} + \underbrace{{\color{purple}\left(1\right)} {\color{blue}\left(7\right)}}_{\text{Durar}} = 10 x^{2} + 14 x + 5 x + 7 = 10 x^{2} + 19 x + 7$$$
Responder
$$$\left(2 x + 1\right) \left(5 x + 7\right) = 10 x^{2} + 19 x + 7$$$A