Question

The value of given expression at a=-1 and b=2.
4a²b - 2ab² + 7ab - 3​

Answer 1

Answer:

IF a = 1 AND b = 2

Step-by-step explanation:

4$a^{2}$b - 2a$b^{2}$ + 7ab - 3

= 4 ($1^{2}$)2 - 2(1)($2^{2}$) + 7(1)(2) - 3

= (4 * 1 * 2) - (2 * 1 * 4) + ( 7 * 1 * 2) - 3

= 8 - 8 + 14 - 3

= (8 + 14) -8 -3

= 22 - 11

= 11

Answer 2

Answer:

4a2b-2ab2+7ab-3

4(1)2(2)-2(1)(2)2+7(1)(2)-3

=11