Question

Simplify: (3x- y2 +7xyz) - (x + y2+ 4xy)
please answer ​

Answer 1

Answer:

(3x- y2 +7xyz) - (x + y2+ 4xy)

=3x-2y+7xyz-x-2y-4xy

=2x-4y-4xy+7xyz

Answer 2

Answer:

$2x - 2y {}^{2} + 3xyz$

Step-by-step explanation:

$(3x - y {}^{2} + 7xyz) - (x + y {}^{2} + 4xyz) \\ = 3x - y {}^{2} + 7xyz - x - y {}^{2} - 4xyz \\ = 2x - 2y {}^{2} + 3xyz$

If the "2" is square then the Answer is

$2x - 2y {}^{2} + 3xyz$