Determine the resulting polynomial:

Mathematics

1 answer:

diamong [38]2 years ago

3 0

Answer:

$24x^3-19x^2-62x+45$

Step-by-step explanation:

$f(x)=-3x+5$

$g(x)=-8x^2-7x+9$

$f(x)*g(x)=(-3x+5)(-8x^2-7x+9)$

$=(-3x)(-8x^2)+(-3x)(-7x)+(-3x)(9)+(5)(-8x^2)+(5)(-7x)+(5)(9)$

$=24x^3+21x^2-27x-40x^2-35x+45$

$=24x^3-19x^2-62x+45$

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