Question

Plz answer ASAP ..!!!!!!​

Answer 1

answer

(4×4)+(3×3)+(-2×-2)+(2×4×3×-2)

8+9+4+(-48)

17+4+(-48)

21+(-48)

-27

hope it helps you ! :)

Answer 2

Given,

The values of X = 4, Y = 3 and Z = -2

To find out the value of,

${x}^{2} + {y}^{2} + {z}^{2} + 2xyz$

Solution:

Now, substitute the value of X,Y,Z in the given algebraic expression.

Here, X^2 = 4^2 = 16

Y^2 = 3^2 = 9

Z^2 = (-2)^2 = 4

2xyz = 2×4×3×(-2) = -48

${4}^{2} + {3}^{2} + { (- 2)}^{2} + 2(4)(3)( - 2)$

$16 + 9 + 4 + ( - 48)$

$29 - 48$

$- 19$

Therefore the value is -19.

Additional information:

What is an algebraic expression?

An algebraic expression is an expression built up with constants,variables and algebraic operations(+,-,×,÷).

Example: x^2+y-2