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11The first step for deriving the quadratic formula from the quadratic equation, 0 = ax2 + bx + c, is shown. Step 1: –c = ax2 + bx Which best explains or justifies Step 1? subtraction property of equality completing the square factoring out the constant zero property of multiplication

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Quadratic equation is of the form

[tex] 0=ax^2+bx+c [/tex]

And to derive quadratic formula from quadratic equation, we need to get rid of c from right side and move it to left side .

And for that, we have to subtract c to both sides, that is

[tex] -c = ax^2 +bx [/tex]

And since we do subtraction, so we have used subtraction property here.

Answer:

completing the square

Step-by-step explanation:

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