Tolong dijawab dengan caranya, hasil perkalian bentuk aljabar dari: a. (x + 2)(x + 3) = b. (2x + 3)(.... Question from @Patriciagrace

October 2018 2 17 Report

Tolong dijawab dengan caranya,
hasil perkalian bentuk aljabar dari:
a. (x + 2)(x + 3) =
b. (2x + 3)(x pangkat dua + 2x - 5) =

thankyouu:)))

Takamori37 Menggunakan cara distributif agar lebih mudah dipahami.
a.)
$$\begin{align}(x+2)(x+3)&=x(x+3)+2(x+3) \\ &=x^2+3x+2x+6 \\ &=x^2+5x+6\end{align}$

b.)
$$\begin{align}(2x+3)(x^2+2x-5)&=2x(x^2+2x-5)+3(x^2+2x-5) \\ &=2x^3+\underline{4x^2}\bold{-10x}+\underline{3x^2}+\bold{6x}-15 \\ &=2x^3+(4x^2+3x^2)+(-10x+6x)-15 \\ &=2x^3+7x^2-4x-15\end{align}$

1 votes Thanks 1

Syubbana A) (x+2)(x+3)=x(x+3)+2(x+3)
= x^2+3x+2x+6
= x^2+5x +6

b) (2x+3)(x^2+2x-5)= 2x(x^2+2x-5)+3(x^2+2x-5)
= 2x^3+4x^2-10x+3x^2+6x-15
= 2x^3 +7 x^2 -4x -15

1 votes Thanks 0

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Tolong jawab dengan cara sederhanakan aljabar di bwh ini: -2(2x pangkat tiga+3x-4) = terimakasiihh

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