Question

If x=4, y=5, and z= -2 find the value of ?
​1. xsquare +y square +z square+2xyz?

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Answer 1

Answer:

-35

Step-by-step explanation:

Hope it helps you!!!!

Answer 2

Answer:

125

Step-by-step explanation:

(x square) +(y square) +(z square) +(2xyz)

(4×4)+(5×5)+(2×2)+(2×4×5×2)

16+25+4+(8×10)

45+80

125

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