Question

разложите на множители 3x+8+3x^2+8x

Answer 1

(3х*х+3х)+(8х-8)=3х (х-1)+8(х-1)=(х-1)*(3х+8)

Answer 2

$3x+8+3x^2+8x=3x^2+3x+8x+8=3x(x+1)+8(x+1) \\ =(x+1)(3x+8)$