Question

1. Simplify :-
(a) 2xy (x-4) + 5y and find its value for :-
(i) x = 2, y = -1
(ii) x = 1/4, y = -1/2​

Answer 1

Step-by-step explanation:

(1) 2xy(x-4)+5y

2×2×-1(2-4)5-1

-4×-2×4

32

(2)2xy(x-4)+5y

2×1/4×-1/2(1/4-4)5×-1/2

0-15/4-5/2

-5/4