Math Help - Binomials and Trinomials

do the multiplication

Do you know FOIL?

(x+y)(x+y)

is a multiplication function: the quantity of (x+y) times the quantity of (x+y). You do that by multiplying both terms (the x and y) by both terms in the other set (the second x and y) and adding up the results.

X times X (the 1st terms in the 1st parentheses times 1st term in the second parentheses) = x^2

X times Y (the first term in the 1st parentheses times 2nd term in the 2nd parentheses) = xy

Y times X (the second term in the 1st parentheses times the 1st term in the 2nd parentheses) = xy

Y times Y (the second term of both parentheses multiplied together) = y^2

add them up to get:

x^2+2xy+y^2

This can't be simplified by adding anymore, and the items are separated by addition (subtraction is also acceptable), which makes them 'terms.' There are three, so this is a trinomial.

A binomial would be an equation with two terms, like

x+y

or something to that effect.

Hope that helped.

Wow we're doing that in my algebra class too. xD

foil
it is called foiling

(x+y)(x+y)
is equivlent to
x*(x+y)+y*(x+y)
when we do this we get
(x^2+xy)+(yx+y^2)
adding the like terms gives us
x^2+2xy+y^2

How do you dudes connect the green advertising links - sales pitch from hell? Only joking I know a site like this is not "easy"to fund.

Would appreciate knowing how to do it though.

E-mail the administrators. Jespah or Craven de Kere are the guys to ask that question.

Baph, welcome to A2k

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