How to Multiply Polynomial

Mathematics
Tutor: None Selected Time limit: 1 Day

(
3
k
1
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2
Apr 12th, 2015

(3k - 1)^2 = (3k)^2 - 2*3k*1 + 1^2 = 9k^2 - 6k + 1

Here the formula of the square of a difference was used: (a - b)^2 = a^2 - 2ab + b^2 with a = 3k and b = 1.

Apr 12th, 2015

Thanks

Apr 12th, 2015

you are welcome

Apr 12th, 2015

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