3 years ago

Evaluate the expression for x2 +y2 for x =-5 and y = -2

1 answer:

6 0

If that’s supposed to be x squared and y squared then it would be: -5^2 + -2^2=29

If it’s x and y multiplied by 2 then the answer would be (-5 x 2) + (-2 x 2) = -14.

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$\left \{ {{-3x+3=y} \atop {-x+3y=29}} \right.\\-x+3(-3x+3)=29\\-x-9x+9=29\\-10x=29-9\\-10x=20\\x=\frac{20}{-10} =>x=-2\\\\-3x+3=y\\-3(-2)+3=y\\6+3=y=>y=9$

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Evaluate the expression for x2 +y2 for x =-5 and y = -2​

Evaluate the expression for x2 +y2 for x =-5 and y = -2