Question

10. If x = 4, y = 3 and z = -2, find the value of
x² + y² - 2²
xy + yz-2x


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Answer 1

the answer is 21,10

I hope this will help you

Answer 2

Answer:

The answer is = -37

Step-by-step explanation:

STEP 1:

X²+Y²-2²XY+YZ-2X

X=4, Y=3, Z=-2

Substitute the above in the question

4²+3²-2²(4×3)+(3×-2)-2(4)

=(4×4)+(3×3)-4(12)+(-6)-8

=16+9-48(+×-)6-8

=16+9-48-6-8

=25-48-6-8

= -23-6-8

=-29-8

= -37

Therefore, your answer is = -37.

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