Mathematics
Junior High
Resolved

教えて頂きたいです
出来ればで良いので紙に書いて欲しいです🥲

(7) 3x²+7x+2= (8) (x+y)²+4(x+y)+3=
因数分解

Answers

✨ Best Answer ✨

(3x+1)(x+2)

x^2+2xy+y^2+4x+4y+3
=x^2+2x(y+2)+y^2+4y+3
=x^2+(2y+4)x+(y+3)(y+1)
=(x+y+3)(x+y+1)

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