Question

Complete the table of products

$\underset{\downarrow Secondmonomial}{\stackrel{Firstmonomial\to }{\to }}$	2x	-5y	$3x^2$	-4xy	$7x^{2}y$	$-9x^2{y}^2$
2x	$4x^2$	-	-	-	-	-
- 5y	-	-	$-15x^{2}y$	-	-	-
$3x^2$	-	-	-	-	-	-
- 4xy	-	-	-	-	-	-
$7x^{2}y$	-	-	-	-	-	-
$-9x^2{y}^2$	-	-	-	-	-	-

Answer 1

Complete table is --

$\underset{\downarrow Secondmonomial}{\stackrel{Firstmonomial\to }{\to }}$	$2x$	$-5y$	$3x^2$	$-4xy$	$7x^{2}y$	$-9x^2{y}^2$
$2x$	$4x^2$	$-10xy$	$6x^3$	$-8x^{2}y$	$14x^{3}y$	$-18x^3{y}^2$
$-5y$	$-10xy$	$25y^2$	$-15x^{2}y$	$20x{y}^2$	$-35x^2{y}^2$	$45x^2{y}^3$
$3x^2$	$6x^3$	$-15x^{2}y$	$9x^4$	$-12x^{3}y$	$21x^{4}y$	$-27x^4{y}^2$
$-4xy$	$-8x^{2}y$	$20x{y}^2$	$-12x^{3}y$	$16x^2{y}^2$	$-28x^3{y}^2$	$36x^3{y}^3$
$7x^{2}y$	$14x^{3}y$	$-35x^2{y}^2$	$21x^{4}y$	$-28x^3{y}^2$	$49x^4{y}^2$	$-63x^4{y}^3$
$-9x^2{y}^2$	$-18x^3{y}^2$	$45x^2{y}^3$	$-27x^4{y}^2$	$36x^3{y}^3$	$-63x^4{y}^3$	$81x^4{y}^4$