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Harry is trying to solve the equation y = 2x^2 − x − 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went wrong.

Harry is trying to solve the equation y = 2x 2 x 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went w class=
Harry is trying to solve the equation y = 2x 2 x 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went w class=
Harry is trying to solve the equation y = 2x 2 x 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went w class=
Harry is trying to solve the equation y = 2x 2 x 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went w class=

Verified Answer :

MissPhiladelphia

He made a mistake in step #2. It seemed to be a trivial mistake because it involved signs, but it still had a great impact. Since step#2, his solution was already wrong.

Instead of
(-1)²-4(2)(-6) = 1 + 48 = 49

What he did is
(-1)²-4(2)(-6) = -1 + 48 = 47

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Answer:

Step #2 which shows -1 + 48 in the square root.

Step-by-step explanation:

I took the test and the answer was Step #2

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