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drek231
[11]
2 years ago
8
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 bel
ow. Find the step where Harry went wrong.
Mathematics
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1
answer:
Bond
[772]
2 years ago
4
0
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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2(x+3)=x-4<br> please help me <3
vovikov84 [41]
2(x + 3) = x - 4
distribute
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