Respuesta :

Answer:

Put parentheses around the binomial and then expand it, and then use foil

Step-by-step explanation:

Let's say I have the binomial x+y.

(x+y)^2

(x+y)(x+y)

x^2+xy+xy+y^2

x^2+y^2+2xy
Answer: Here's what I would do using the FOIL method:
1. Multiply the first terms
2. Multiply all the outer terms
3. Multiply all the inner terms
4. Multiply the last terms
5. Combine like terms
Example problem: (x+3)^2 = (x+3) (x+3)
1. (x) (x) = x^2
2.(x) (3) = 3x
3. (3) (x) = 3x
4. (3) (3) = 9
5. Combine like terms solution:
x^2 + 6x + 9
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