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March 24, 2017

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expand and simplify

1.(x^2-3x+4)(-x^2+3x-4)
2.3(2x-5)-9(4x-5)

  • math - ,

    1. -x^4+3x^3-4x^2+3x^3-9x^2+12x-4x^2+12x-16
    simplified form:
    -x^4+6x^3-17x^2+24x-16
    or
    x^4-6x^3+17x^2-24x+16

    2. 6x-15-36x+45
    simplified form:
    -30x+30
    30x-30

    hope it will help you. :)

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