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23-11-2018
Mathematics

contestada

hello, please help me do these 10 exercises of SQUARE OF A BINOMIO:
(3-y)²
(2-x)²
(4-y)²
(5+y)
(7-d)
(z-d)
(Z+10)
(l-i)
(m+6)
(n-s)

Respuesta :

Аноним Аноним

23-11-2018

I'm guessing that you needed to multiply the binomials. If so, I have done number 1 for you.

(3-y)^2=

(3-y) (3-y)=

Use Foil method: first outer inner, last

9-3y+-3y+y^2

y^2-6y+9

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