Question

8. Simplify the expression and find its value when a = 2 and b = 4
4(a 2 - ab) + 3b-ab​

Answer 1

Answer:

20

$4( {a}^{2} - ab) + 3b - ab \\ 4( {2}^{2} - 2 \times 4) + 3(4) - (2)(4) \\ 4(4 - 8) + 12 - 8 \\ 4(4) + 4 \\ 16 + 4 \\ 20$

Answer 2

Answer:

= 4a²-4ab +3b - ab

= 4(2)² - 4(2)(4) + 3(4) - (2)(4)

= 16 - 32 + 12 - 8

= -12

I hope that this answer will help you if you like it then mark me as brainliest

and follow me on brainly pls ☺️☺️!!