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Let P=x^2-6x-13. If x is real, what is the smallest possible value of P?What value of x produces this minimum value of P?

 

If (a-2b)^2+(b-2)^2=0, and a and b are real, then what is ab?

 Oct 13, 2022
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1. The smallest possible value of P is -13, which occurs when x = 6.

 

2. ab = sqrt(2).

 Oct 13, 2022

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