Jawapan

2016-03-12T21:09:15+08:00
If x = 4, y = 6 in (2x-12)+(1/2xy-10), then
(2(4) - 12) + (1/2(4)(6) - 10) = Simplify
8 − 12 + 1/2 × 4 × 6 − 10 = Simplify multiply
8 − 12 + 24/2 − 10 = Simplify fraction
8 − 12 + 12 − 10 = Simplify even more
8 - 10 =

Final:
-2
2016-03-12T23:56:51+08:00