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10 January, 13:08

Look at the quadratic equation below. - x2 + 3 = (2x - 1) 2 What is this quadratic equation written in standard form?

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  1. 10 January, 14:33
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    We need to expand it

    standard is 0=ax^2+bx+c

    so

    expand left side

    (2x-1) ² = (2x-1) (2x-1) = 4x²-4x+1

    now we gots

    -x²+3=4x²-4x+1

    add x^2 to both sides and minus 3

    0=5x²-4x-2
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