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valentina_108 [34]
3 years ago
15

If x=2, 4= 3 and z=-5

World Languages
1 answer:
Furkat [3]3 years ago
7 0

Question:

If x = 2, y = 3 and z = -5, then x^2 + y^2 +2z = ?

Answer:

x^2 + y^2 +2z =3

Explanation:

Given

x = 2

y = 3

z = -5

Required

Determine x^2 + y^2 +2z =

x^2 + y^2 +2z =

Substitute values for x, y and z in the above expression:

x^2 + y^2 +2z =2^2 + 3^2 + 2(-5)

x^2 + y^2 +2z =2^2 + 3^2 - 2*5

x^2 + y^2 +2z =4 + 9 - 2*5

x^2 + y^2 +2z =4 + 9 - 10

x^2 + y^2 +2z =3

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