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KonstantinChe [14]

3 years ago

7

Multiplying polynomials (3m-1)(8m+7)

2 answers:

shtirl [24]3 years ago

6 0

(3m -1)(8m + 7)

= {3m(8m + 7)} - {1(8m+7)}

= 24m² + 21m - 8m+ 7

= 24m² + 13m - 7

Zolol [24]3 years ago

3 0

$(3m-1)(8m+7)=3m\cdot 8m+3m\cdot 7-1\cdot 8m-1\cdot 7=\\ \\=24m^2+21m-8m-7=24m^2+13m-7$

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