Question

(2x + 3y + z)^2 - (2x - 3y - z) ^ 2​

Answer 1

Answer:

$(2x + 3y + z) { }^{2} - (2x - 3y - z) {}^{2} . \\ (4x + 9y + z {}^{2} ) - (4x - 9y - z {}^{2} ). \\ = 4x {}^{2} + 9y {}^{2} + z { }^{2} + 12xyz \\ + 4x {}^{2} + 9y {}^{2} + z {}^{2} + 12xyz \\ = 8x {}^{2} + 18y {}^{2} + z {}^{2} + 24xyz.$

Answer 2

Answer:

(2x+3y+z)

2

−(2x−3y−z)

2

.

(4x+9y+z

2

)−(4x−9y−z

2

).

=4x

2

+9y

2

+z

2

+12xyz

+4x

2

+9y

2

+z

2

+12xyz

=8x

2

+18y

2

+z

2

+24xyz.

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Step-by-step explanation:

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