Question

x(x-3)-3y(y-2)-y² simplify this question​

Answer 1

3y(2y−7)−3(y−4)−63

= 3y.2y−3y.7−3.y+3×4−63

=6y

2

−21y−3y+12−63

=6y

2

−24y−51.

for y=−2 in expression

6y

2

−24y−51=6(−2)

2

−24(−2)−51

=6(4)+48−51

=24+48−51

= 72−51

= 21.

Answer 2

Answer:

x²-3x-4y²-6y

Step-by-step explanation:

x(x-3)-3y(y-2)-y² = x²-3x-3y²-6y-y²

= x²-3x-4y²-6y

I hope it helps

If yes make this answer as brainliest