NiyamatSingh NiyamatSingh

31-07-2018
Mathematics

contestada

multiply the polynomials (5x^2 + 2x +8)(7x7 - 6)

Respuesta :

tmvazquez21 tmvazquez21

31-07-2018

If you mean the "x" is multiply, then your answer is 35x9+14x8+56x7−30x2−12x−48

Explanation:

=(5x2+2x+8)(7x7+−6)

=(5x2)(7x7)+(5x2)(−6)+(2x)(7x7)+(2x)(−6)+(8)(7x7)+(8)(−6)

=35x9−30x2+14x8−12x+56x7−48

=35x9+14x8+56x7−30x2−12x−48

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