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 2 years ago
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.
 2 years ago
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.

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apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1First of all, do you know what the quadratic formula is?

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1I wrote this problem out 6 times, still can't see WHERE he went wrong.

apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1What are you corresponding 'a', 'b' and 'c' for this quadratic when you compare it with the standard equation of a quadratic "ax^2 + bx +c=0"?

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1A = 2. B = 1. C = 6.

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1\[1 \pm \sqrt{1^{2}}  4*2*6\]

careless850
 2 years ago
Best ResponseYou've already chosen the best response.112 * 4 = 48. 1*1 = 1. \[1 \pm \sqrt{148 } \div 2\]

apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1Should be : \[x = \frac{(1) \pm \sqrt{(1)^2  4 \times 3 \times (6) }{} }{2\times 2 }\]

apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1actually the second step itself ha the error. (1)^2 = 1 and yes that would be 4*2*6 > typo my bad.

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1So, it's step 2, right?

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1I have one more question.

apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1And please ask questions in the correct subject forum :)

apoorvk
 2 years ago
Best ResponseYou've already chosen the best response.1Sure, just post it as a new one!

careless850
 2 years ago
Best ResponseYou've already chosen the best response.1Oh wow, I didn't realize I was in biology
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