keellyxoxo
keellyxoxo
31-01-2018
Mathematics
contestada
help me pleaseee!!!!!!!!!!!!!!!!!!!!
Respuesta :
selenahong2010owiqak
selenahong2010owiqak
31-01-2018
You have to square the binomial.
(x^3 + 4y) (x^3 + 4y)
Using FOIL:
x^9 + 4(x^3)y + 4(x^3)y + 16y^2
x^9 + 8(x^3)y + 16y^2
You could also use the formula: (a+b)^2 = (a^2 + 2ab + b^2).
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