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Alex787 [66]
3 years ago
9

Minimize Q=x^2+2y^2, where x+y=3

Mathematics
1 answer:
Studentka2010 [4]3 years ago
6 0
<span>The first step you need to do is to rewrite
x+y=3
as y=3-x
</span><span>Now we can replace the y in the equation with our newfound value for y, which is
y=3-x.
So lets write it now like this
Q=x^2+2(3-y)^2
=x^2+18-12x+2x^2
=3x^2+18-12x
</span>Hope this helps
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Answer:

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Step One

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Step Two

Subtract the two equations.

(7 - BM)^2 + CM^2  = 32

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Step three

Expand the left side of the new equation labeled (3)

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Step 4

Simplify And Solve

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BM = -42 / - 14

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Step  Five

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sqrt(CM^2) = sqrt(16)

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Step-by-step explanation:

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