Question

Find the product of (2x – 4) and (5 + 3y)​

Answer 1

$(2x + 4)(5 + 3y) \\ 2x(5 + 3y) + 4(5 + 3y) \\ 10 x + 6xy + 20 + 12y \\10x + 12y + 6xy + 20$

Answer 2

$\huge\fcolorbox{cyan}{pink}{ANSWER-:}$

$(2x+1)(2x2+3y+4z)$

$(2x+1)×2x2+2x×3y+2x×4z$

$=2×2×x×x2+2×3×x×y+2×4×x×z+2x2+3y+4z$

$=4x3+6xy+8xz+2x2+3y+4z$