14-10-2016
Mathematics

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Which number cannot be a value of y if y=2xsquared -3? 15 5 -3 or-5

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14-10-2016

well, the squared makes it positive
the smallest value is
y=2(0)^2-3
y=0-3
y=-3

anythingn below that is not possible

-5 is below that

-5 is the answer

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