I need help with eight and nine you are to multiply the binominaals using the horizontal format

Patze asked Jul 12, 2023

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3 votes

Patze asked Jul 12, 2023

by Patze

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17 votes

Answer:

8.
$15m^2-31m+10\\$

9.
x^2y^2z^2+2xyz-3

Explanation:

$(a+b)(c+d)=ac+ad+bc+bd\\(3m-5)(5m-2)=3m*5m+3m(-2)-5*5m(-2)\\=3m*5m+3m(-2)-5*5m(-2)\\=15m^2-31m+10$

^#8^

$(xyz+3)(xyz-1)=xyzxyz+xyz(-1)+3xyz+3(-1)\\=xyzxyz+xyz(-1)+3xyz+3(-1)\\=x^2y^2z^2+2xyz-3$

^#9^

Hassan Voyeau answered Jul 19, 2023

2.9k points

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