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algerbra

posted by on .

i have to simply the expression
3x squared-10+4x+8-x squared, so far i have this

1x squared+4x-2
3x squared-1xsqaured+4x -10+8
2x squared+4x-2

i know its kinda confusing becasue i type sqaured so many time, am i on the right track?how do i find the answer now? i'm so confused :(

  • algerbra - ,

    You are OK as far as you went.

    3x^2 -10 +4x +8 -x^2 = 2x^2 +4x -2
    = 2(x^2 +2x -1)
    That cannot be factored easily, so it is as simplified as it is going to get.

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