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Mathematics, 24.07.2019 14:00 kellyroy74
The steps to derive the quadratic formula are shown below: step 1 ax2 + bx + c = 0 step 2 ax2 + bx = − c step 3 x2 + (b / a)x = - c / a step 4 x2 + (b / a)x + b ^2 / 4a^2 = (- c / a) + (b^2 / 4a^2) step 5 x2 + (b / a)x + b ^2 / 4a^2 = (-4ac / 4a^2) + (b^2/4a^2) step 6 x^2 + b / 2a = (b^2 - 4ac) / (4a^2) step 7 x + b / 2a = +- square root of b^2 - 4ac / 4a^2 = +- square root of b^2 - 4ac / 4a step 8 x = −b / 2a +- square root of b ^2 - 4ac / 2a step 9 x = (- b +- square root of b^2 - 4ac) / (2a) which of the following is the first incorrect step? a) step 4 b) step 6 c) step 7 d) step 8
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The steps to derive the quadratic formula are shown below: step 1 ax2 + bx + c = 0 step 2 ax2 + b...
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