3) Simplify and then evaluate:a) (3x-2y)(x-y-1) -(x-1)(x+y) for x=1 an

1.	3) Simplify and then evaluate:a) (3x-2y)(x-y-1) -(x-1)(x+y) for x=1 and y=2b) 6p(2p-3) -11; for p=2
Answer» Answer: a)6 b)1 Step-by-step EXPLANATION: a) =(3×1-2×2)(1-2-1)-(1-2)(1+2) =(3-4)(-2)-(-1)(3) =(-1)(-2)+3 =3+3 =6 b) =6×2(2×2-3)-11 =12(1)-11 =12-11 =1

3) Simplify and then evaluate:a) (3x-2y)(x-y-1) -(x-1)(x+y) for x=1 and y=2b) 6p(2p-3) -11; for p=2

Answer»

Answer:

a)6

b)1

Step-by-step EXPLANATION:

=(3×1-2×2)(1-2-1)-(1-2)(1+2)

=(3-4)(-2)-(-1)(3)

=(-1)(-2)+3

=3+3

=6×2(2×2-3)-11

=12(1)-11

=12-11

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3) Simplify and then evaluate:a) (3x-2y)(x-y-1) -(x-1)(x+y) for x=1 and y=2b) 6p(2p-3) -11; for p=2​

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3) Simplify and then evaluate:a) (3x-2y)(x-y-1) -(x-1)(x+y) for x=1 and y=2b) 6p(2p-3) -11; for p=2