Mathematics
Undergraduate
数１の因数分解の問題です。
xの二乗(x +1)+2(x＋１)からなぜこのような答えになるのか詳しく教えて欲しいです🙇♀️
(2) x³+x²+2x+2 = (x³ + x²)+(2x+2)
=
= (x + 1)(x²+2)
x²(x+1)+2(x+1)
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理解できました‼︎
ありがとうございます🙇♀️