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x=3

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Q: What is x-squared minus 8x equals negative 15?
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What is minus ten minus 5 equals?

I think you mean "What does negative 10 minus 5 equal?" If not, please correct me. But, the correct answer would be -15 or negative 15.


What is negative 15 plus positive 20?

Negative 15 plus positive 20 equals 20 minus 15, which equals 5.


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If you subtract 15 from -6 you get -21. If you worked out the problem on paper, this is what it would look like. -6 - 15 = ? (change the minus to a plus, and change the sign of 15 from positive to negative) -6 + -15 = ? ( now you can add negative 6 plus negative 15 which equals negative 21) -6 + -15 = -21


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What is Xsquared equals -8x plus 15 using the quadratic formula?

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