Question

find the value of :- 2ab+3ab²-5a²b; when a=2,b=1​

Answer 1

Step-by-step explanation:

2×2×1 + 3×2×1×1 -5×4×1

4+6-20

10 -20

-10

Answer 2

Answer:

2(2)(1)+3(2)(1)²-5(2)²(1)

4+6-20

10-20

-10