Question 940757

The steps to derive the quadratic formula are shown below:
Step 1: ax2 + bx + c = 0
Step 2: x2 + b over ax + c over a = 0
Step 3: x2 + b over ax = - c over a 
Step 4: x2 +b over a x + square of quantity of b over 2 times a = - c over a + square of quantity of b over 2 times a
Step 5: x plus b over 4a, all square = - c over a+ square of quantity of b over 2 times a
Step 6: x + b over 2 times a = square root of all of negative c over a plus the square of the quantity b over 2 times a 
Step 7: x = - b over 2 times a± square root of all of negative c over a plus the square of the quantity b over 2 times a = -b over 2 times a ± square root of the quantity of b squared minus 4 times a times c over 4 times a squared= negative b plus or minus square root of b squared minus 4 times a times c over 2 times a

Which of the following statements best describes the first incorrect step?
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{{{ax^2 + bx + c = 0}}}
First incorrect step: Step 2
Explanation: The entire equation SHOULD BE DIVIDED by a. In this case, it wasn't. 
Correct STEP 2: {{{ax^2/a + bx/a + c/a = 0/a}}}