Question

Show all work. I don't get how to do these. Thanks in advance! :) Will give medal.
1. Multiply and simplify.
a) (b + 2)(b + 2)
b) (x + 3)(x – 3)

2. Simplify.
a) (3xy3)(2x3y)
b) 2y(2y + 3y2) – y2(3 – y)

Answer 1

1. FOIL method
First - outside - inside- last

(b + 2)(b + 2)
first -- multiply first terms in each set...b * b = b^2
outside -- multiply outside terms in each set ... b * 2 = 2b
inside -- multiply inside terms in each set .. 2 * b = 2b
last -- multiply last terms in each set .. 2 * 2 = 4
now put it all together
b^2 + 2b + 2b + 4 -- combine like terms
b^2 + 4b + 4 <== your answer

you would do the other one on part 1 the same way.
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not too good with part 2...sorry

Answer 2

Thank you.