Question

(x+5)(3x+7)=? (x+y+z)(x+y+z)=? (x)(x³+x²+x)=?​

Answer 1

Explicación paso a paso:

x+5 3x+7

3x²+15x+7x+35

3x²+22x+35

x+y+z x+y+z

x²+xy+xz+xy+y²+yz+xz+yz+z²

x²+2xy+y²+2xz+z²+2yz

x x³+x²+x

x⁴+x³+x²