what is y=3(x+1)^2+9 in standard form?

Question

liljj1421 · Answer

sorry i was trying to do my other problems

giannabaroni · Answer

you're good(:

liljj1421 · Answer

wouldn't you get x^2 and 1

giannabaroni · Answer

Yes(: so now what would you do to simplify this equation?

liljj1421 · Answer

opps sorry idk why i put +9 it is -7

liljj1421 · Answer

so would you add the +1 to the -7?

photon336 · Answer

$$3(x+1)^{2} + 9= 3(x+1)(x+1) + 9$$

giannabaroni · Answer

shoot yes @Photon336 is right

giannabaroni · Answer

disregard what I said

photon336 · Answer

yeah, it's easy to get tripped up on that

calculusxy · Answer

so you would actually get $$3(x+1)(x+1) = 3(x^2 + 1x + 2x + 1) = \color{green}{3(x^2 + 2x + 1)}$$

calculusxy · Answer

sorry i meant to say 
3(x^2 + 1x + 1x + 1)

liljj1421 · Answer

im so confused rn

liljj1421 · Answer

sorry

photon336 · Answer

first you need to foil (x+1)(x+1)

giannabaroni · Answer

Haha okay so (x+1)^2 is also (x+1)(x+1)

giannabaroni · Answer

so it's $$y=3(x+1)(x+1)-7$$

giannabaroni · Answer

and then foil like @Photon336 said earlier

liljj1421 · Answer

what is foil?

giannabaroni · Answer

Okay so first you multiply the (F) first terms of each expression. in this case, it would be x and x. Then you multiply the (O) Outer two terms of the binomial which in this case is x and 1. After that, you do the same for the (I) Inner two terms, x and 1, and the (L) last two terms. 

Once you find what you got for F, O, I, and L, you add those together and simplify.

giannabaroni · Answer

@liljj1421 come back!(:

giannabaroni · Answer

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