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16 March, 12:32

A student is deriving the quadratic formula. Her first two steps are shown.

Step 1: - c = ax2 + bx

Step 2:

Which best explains or justifies Step 2?

division property of equality

factoring the binomial

completing the square

subtraction property of equality

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Answers (1)
  1. 16 March, 15:54
    0
    Answer: the subtraction quality of equality

    If step 1 was the original formula 0 = ax² + bx + c and

    Step 2 is - c = ax2 + bx

    Step-by-step explanation:

    If she subtracts c from both sides of the equation, the sides ars still equal to each other.
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