1.

G(xyz) = 7x3y2z + 4x2yz2–7x2y2z2+ 7URGENT

Answer»

Step-by-step explanation:

(x+y+Z)

4

=

4

C

0

x

0

(y+z)

4

+

4

C

1

x(y+z)

3

+

4

C

2

x

2

(y+z)

2

+

4

C

3

x

3

(y+z)+

4

C

4

x

4

(y+z)

3

We are INTENDED in term 4C

2

x

2

(y+z)

2

4

C

2

x

2

(y+z)

2

=

2

4×3

x

2

(y

2

+z

2

+2YZ)

=6x

2

y

2

+6x

2

z

2

+

12x

2

YZ

coefficient of x

2

yz→12


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