Question 1006563


8. 

{{{2(-2a^2-4d)-(-3a^2+17d)}}}

{{{-4a^2-8d+3a^2-17d}}}

{{{(3a^2-4a^2)+(-17d-8d)}}}

{{{-a^2-25d}}}



11.

{{{-5(a-b)-(a-b)+8(a-b)}}}
{{{-5a+5b-a+b+8a-8b}}}
{{{(8a-5a-a)+(5b+b-8b)}}}
{{{(8a-6a)+(6b-8b)}}}
{{{2a-2b}}}


12.

{{{ -4(x+5(-3xy+x))-(10+15xy)}}}
{{{ -4(x+(-15xy+5x))-10-15xy}}}
{{{ -4(x-15xy+5x)-10-15xy}}}
{{{ -4(-15xy+6x)-10-15xy}}}
{{{ -4(-15xy)-4(6x)-10-15xy}}}
{{{ 60xy-24x-10-15xy}}}
{{{ (60xy-15xy)-24x-10}}}
{{{ 45xy-24x-10}}}


13. 

{{{(5/8)c^2-(1/4)d-(3/7)c^2+(3/5)}}}
{{{((5/8)c^2-(3/7)c^2)-(1/4)d+(3/5)}}}
{{{(5/8-3/7)c^2-(1/4)d+(3/5)}}}
{{{(5*7/(8*7)-3*8/(7*8))c^2-(1/4)d+(3/5)}}}
{{{(35/56-24/56)c^2-(1/4)d+(3/5)}}}
{{{(11/56)c^2-(1/4)d+(3/5)}}}


14.

 {{{3(5a)-7(3b)-3(2a)+2(9b)}}}

 {{{15a-21b-6a+18b}}}

 {{{(15a-6a)+(18b-21b)}}}

 {{{9a-3b}}}