Question

please solve this fast friends 2a²-ab - ac -3b²+4bc ; when a=1, b= -1 and c = 2

Answer 1

hello here is your answer by Sujeet yaduvanshi ☝☝☝☝☝☝☝☝☝

that's all

Answer 2

2(1)^2-(1)(-1)-(1)(2)-3(-1)^2+4(-1)(2)
2+1-2-3-8
1-11=-10