Question

Simplify the value of following
1. (a+2b)(a-3b) at a=-1,b=1
2. (3x-2y)(2x+5y) at x=0,y=1

Please Solve this question.​

Answer 1

Answer:

1)-6 and 2)-10

Step-by-step explanation:

1) (1+2×1)(1-3×1)

=(1+2)(1-3)

=3×-2=-6

2)(3×0-2×1)(2×0+5×1)

=(-2)(5)

=-10

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Answer 2

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