Math

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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 -

    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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