Question 330125
First:{{{9x^4(x^5)=9x^9}}}
Outer:{{{9x^4(-3)=-27x^4}}}
Inner:{{{-8(x^5)=-8x^5}}}
Last:{{{-8(-3)=24}}}
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{{{(9x^4-8)(x^5-3)=9x^9-27x^4-8x^5+24}}}
{{{(9x^4-8)(x^5-3)=9x^9-8x^5-27x^4+24}}}