Posted by **Crystal** on Monday, February 15, 2010 at 2:59pm.

x-4 multiplied by x-3 equals what? 2x-1 multiplied by x-3 equals what?

I tried doing each problem each time and whenever it is in fraction form since that is how it is suppose to be written, it doesn't look right. What could I be doing wrong?

- Math -
**anonymous**, Monday, February 15, 2010 at 3:17pm
you mean:

(x-4)(x-3)=?

and

(2x-1)(x-3)=?

When multiplying binomials, we use FOIL or First Outside Inside Last to express the product as a sum of terms.

(x-4)(x-3)

First-multiply first two terms of the two binomials.

Outside-multiply the first terms of the first binomial with the last term of the second binomial.

Inside-multiply the last term of the first binomial and the first term of the second binomial

last-multiply the last term of both binomials.

then combine like terms

x^2=first

-3x=outside

-4x=inside

12=last

x^2-3x-4x+12=x^2-7x+12

(2x-1)(x-3)=2x^2-6x-x+3=2x^2-7x+3

Hope this helped. Peace.

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