math

I must simplify this equation and am having a hard time (5+2a+3a)-(a2+a-6) I also would like to know if you could help me with this onex(4x2+3x-5)-2(4-x2) this is also simplifing. I have a really hard time with these, thank you

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  1. (5+5A)-(A-4)
    I CANT HELP U WITH THE SECOND ONE

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  2. (5+2a+3a)-(a2+a-6)
    = 5+5a - a^2 - a + 6
    = 11 + 4a - a^2

    second one
    x(4x2+3x-5)-2(4-x2)
    = 4x^3 + 3x^2 - 5x - 8 + 2x^2
    = 4x^3 + 5x^2 - 5x - 8

    These are the answers according to the way you typed the questions

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