Question

The value of 3a²b - 5ab when a = 2, b = -1​

Answer 1

Answer:

3(2)²(-1) - 5(2)(-1)

6²-3 - 10-5

6²-3-15

6²-18

Answer 2

Answer:

equation given = 3a^2-5ab

a=2 and b= -1. [given]

putting the value of a and b in the equation, we get

3(2^2)(-1) - 5(2)(-1)

3(4)(-1) - 5(2)(-1)

-12+10

-2