Question

Harry is trying to solve the equation y = 2x2 − x − 6 using the quadratic formula. He has made an error in one of the steps below. Find the step where Harry went wrong.

Answer 1

Those are the choices btw

Answer 2

step one is correct

Answer 3

ok, cool

Answer 4

like he did the coorect step

Answer 5

It is in step 2 he made a mistake. Harry calculated (−1)2=−1 when he should have calculated (−1)2=1

Answer 6

umm, thats not even a step here. the -1 is added to the 48 to make 47, its not multiplied by 2

Answer 7

@godgavemeyou so i think step 2 is correct

Answer 8

I got 1+/-(sqrt)49/4. So it would be 1+7/4 or 1-7/4

Answer 9

so which step than?

Answer 10

@audreynicole47

Answer 11

Step 2 is wrong. It should be a positive 1. Not a negative 1. It is squared making it positive.

Answer 12

awesome! thanks

Answer 13

You're welcome. Always remember under the square root the 'b' is squared (: