#how do you distribute?

7 messages · Page 1 of 1 (latest)

hushed star
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okay so I completely forgot how to distribute properties a(b+c)=ab+ac

i get the concept but i’m totally confused when it’s applied to composite functions. please someone explain just the steps, i think i’m missing something.

here’s an example
find fog(x)
f(g(x))
2(5x+3)^2+1

IMG_1568.png
misty cradle
hushed star
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which formula?

misty cradle
grave hinge
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2(5x+3)^2+1
2(5x+3)(5x+3)+1
2(25x^2+30x+9)+1
50x^2+60x+18+1
50x^2+60x+19

#

when you have a binomial squared its just (a+b)(a+b) then a^2+2ab+b^2