SOLUTION: Multiply the following and simplify by adding like monomials into a single polynomial (a) (2x+1)[(x+3)(3x-1)] (b) (2x+y)^2 (y squared)

Question 711227: Multiply the following and simplify by adding like monomials into a single polynomial
(a) (2x+1)[(x+3)(3x-1)]
(b) (2x+y)^2 (y squared)
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
(2x+1)[(x+3)(3x-1)]
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Multiply out the binomial within the brackets first:

Next, multiply through the (2x+1) term:

Combine like terms and you are done:

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(2x+y)^2 (y squared)
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I am not sure what this means... is it this?

If so... Square the binomial first:

Multiply though the y^2 term:

There are no like terms to combine, so you are done (assuming the original expression is right!)
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Good Luck,
tutor_paul@yahoo.com
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