Monomios

$(-7x^4y^2)(-5x^6a^3) =$ $35x^{10}y^2a^3$
$(3x^2y^4a^3)^2 =$ $9x^4y^8a^6$
$\dfrac{-2x^7y^9a}{15x^2ya} =$ $\dfrac{-2x^5y^8}{15}$
$\sqrt{36x^{10}y^4a^2} =$ $6x^5y^2a$
$-8x+6x-9x^2-2y^2-8+10-y =$ $-9x^2-2x-2y^2-y+2$

$(5x^6y^5)(-2x^4a^2) =$ $-10x^{10}y^5a^2$
$(-5x^2y^6a)^2 =$ $25x^4y^{12}a^2$
$\dfrac{-12x^3y^2a^7}{20x^9y^2a^3} =$ $\dfrac{-3a^4}{5x^6}$
$\sqrt{25x^8y^{12}b^6} =$ $5x^4y^6b^3$
$-3x+2x^2-8+y^2+8x+6-x^2 =$ $x^2+5x+y^2-2$

$(-6x^4y^3)(-2x^5y^2b) =$ $12x^9y^5b$
$(-6x^4y^3b)^3 =$ $-216x^{12}y^9b^3$
$\dfrac{-4x^5ya}{12y^6x^2a} =$ $\dfrac{-x^3}{3y^5}$
$\sqrt[3]{-8x^{12}y^9b^3} =$ $-2x^4y^3b$
$5x-4+2x^2-3x-7x^2+5-y =$ $-5x^2+2x-y+1$

$(4x^7y^2)(-3x^6y^2a) =$ $-12x^{13}y^4a$
$(-4x^3y^4a^2)^3 =$ $-64x^9y^{12}a^6$
$\dfrac{20x^4y^6a^3}{-50x^7a^6y^6} =$ $\dfrac{-2}{5x^3a^3}$
$\sqrt[3]{-125x^{24}y^6b^3} =$ $-5x^8y^2b$
$2x-3+6x^2-7x+2x^2+8 =$ $8x^2-5x+5$

$(-9x^3y^5)(-4x^2a^4) =$ $36x^5y^5a^4$
$(2x^5y^3b^2)^3 =$ $8x^{15}y^9b^6$
$\dfrac{-6x^8y^4a^2}{18x^3y^4a^5} =$ $\dfrac{-x^5}{3a^3}$
$\sqrt{49x^6y^{14}a^4} =$ $7x^3y^7a^2$
$-7x+3x-5x^2+4y^2-6+9-3y =$ $-5x^2-4x+4y^2-3y+3$

$(6x^4y^7)(-7x^5y^2b^3) =$ $-42x^9y^9b^3$
$(-3x^5y^2b^4)^3 =$ $-27x^{15}y^6b^{12}$
$\dfrac{-15x^6y^3a^5}{25x^2y^8a} =$ $\dfrac{-3x^4a^4}{5y^5}$
$\sqrt[3]{-64x^9y^{15}a^6} =$ $-4x^3y^5a^2$
$4x-5+3x^2-9x+6x^2+2 =$ $9x^2-5x-3$

$(-10x^5y^3)(6x^4y^2b)=$
$(3x^4y^2a)^3=$
$\dfrac{-8x^7y^6a^4}{24x^3y^2a^2}=$
$\sqrt{81x^{10}y^8a^6}=$
$-6x+7x-4x^2+3y^2-8+9-2y=$

$(7x^4y^6)(-9x^3b^2)=$
$(-2x^3y^5b)^3=$
$\dfrac{-5x^6y^7b^8}{15x^2y^4b^3}=$
$\sqrt{49x^6y^{12}b^4}=$
$8x-3x^2+5y^2-7x+10-2x^2-y=$

$(-7x^3y^4)(4x^6y^3a)=$
$(-5x^2y^4b)^2=$
$\dfrac{-12x^8ya^3}{36x^4a^2y^2}=$
$\sqrt[3]{-27x^9y^6b^3}=$
$9x+3x^2-5x-6x^2+7+2y-3=$

$(5x^5y^2)(-8x^4y^3a)=$
$(-4x^3y^2a^4)^2=$
$\dfrac{18x^6y^7a^3}{54x^9a^6y^5}=$
$\sqrt[3]{-64x^{12}y^9b^6}=$
$3x-2+5x^2-6x+4x^2+7=$

$(-8x^6y^2)(5x^3y^4a^2)=$
$(4x^2y^5b^3)^2=$
$\dfrac{-10x^9y^5b^3}{35x^4y^2b^7}=$
$\sqrt{64x^{12}y^6b^8}=$
$-9x+4x-6x^2+2y^2-7+11-4y=$

$(3x^8y^3)(-6x^2y^6a)=$
$(-2x^4y^3a^2)^3=$
$\dfrac{21x^5y^8a^2}{-28x^7y^3a^6}=$
$\sqrt[3]{-216x^6y^{12}a^9}=$
$6x-8+4x^2-2x-9x^2+3=$