Question

if x is equal to 3 y is equal to 1 and Z is equal to minus 4 find 4 x square + Y square + Z square - 4 x y - 2 Y Z plus 4 z x​

Answer 1

Answer:

205/2

Step-by-step explanation:

since x=3y

3y=1 so,

x=3y=1 then, x=1 and 3y=1

y=1/3 and z= -4

A/Q

4[x(2)+yx^{2}+zx^{2}-4xy-2yz+4zx

on putting the value, of x,y and z, we get,

4*(1*1)+(1/3)*(1/3)+(-4)*(-4)-4*1*1/3-2*1/3*(-4)+4(-4)*1

4+1/9+16-4/3+8/3-16

36+1+144-12+24-16/9

37+144+24-28/9

205/9

Answer 2

Step-by-step explanation:

so the answer is 158

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