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22 October, 17:35

Which expression is equivalent to (2x^2+6x-3) - (x^2-2x-7) ?

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  1. 22 October, 19:50
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    x^2 + 4x + 4

    Step-by-step explanation:

    Add the values with the same variables of x ...

    Dont that the negative sign is also multiplied into the bracket of (x^2 - 2x - 7)

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

    ; x^2 + 4x + 4
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