Question

Ayuda!!
M+M=
A+2a+9a=
6x2y2-12y2x2+x2y2=
(3x3-5x2+3x+2)+(2x3+4x2-5x-1)=
3x2*4x5=
-3x*7x2=
(-5x2y3):(-7xy2)=
(2y-3y)(2x+6y2-4xy)=
(-8x3-6x2+2x-3)(2x6-5x5+7)=

Answer 1

M + M = 2M

A + 2a + 2a = A + 13a

6x2y2 - 12y2x2 + x2y2 = 24xy - 48xy + 4xy = -20xy

(3x3-5x2+3x+2)+(2x3+4x2-5x-1)=(9x-10x+3x+2)+(6x+8x-5x-1)=11x+1

3x2 * 4x5 =  6x * 20x = 120$x^{2}$

-3x * 7x2 = -3x * 14x = -42 $x^{2}$

(-5x2y3):(-7xy2) =  (-30xy)/(-14xy) = 15/7  =>Se simplifica las variables y signos

(2y-3y)(2x+12y-4xy)= (-y)(2x+12y-4xy)=(-2xy-12$y^{2}$+4x$y^{2}$)

(-8x3-6x2+2x-3)(2x6-5x5+7)=(-34x-3)(-13x+7)=442 $x^{2}$-199x-21