I need someone to walk me through how to get the answer to this: (5x-3y^5)^2
"What is a simpler form of the product?"
open the square (a+b)^2=a^2+b^2+2ab
(x^n)^2=x^2n
@babysmith baby can u do it now
No I don't understand that.
can u open the square????
@babysmith
I don't know what 'open the square' means?
Have you heard of FOIL?
First, outside, inside, last.
Yep, use it :)
But the problem doesn't look like a problem I would use FOIL on.
$$ (5x-3y^5)^2=(5x-3y^5)(5x-3y^5)$$
Or we could use the distributive property if you want?
I have the answer, by the way, I'm just not sure how to get to the answer.
$$a(b-c)=ab-ac$$ $$(5x-3y^5)(5x-3y^5)=(5x-3y^5)(5x)-(5x-3y^5) (3y^5)$$ $$(b-c)a=ba-ca$$ $$(5x)(5x)-(3y^5)(5x)-[(5x)(3y^5)-(3y^5)(3y^5)]$$ $$=25x^2-15xy^5-15xy^5+9y^{10}$$ $$=25x^2-30xy^5+9y^{10}$$
For some reason I still don't understand. Thank you for trying anyway.
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