2a(3a-5b)-3a(2a-b) -12b(1/4-a)-6a(2b-1/3) при а= -0.7 b= 2

Question

2a(3a-5b)-3a(2a-b)
-12b(1/4-a)-6a(2b-1/3)
при а= -0.7 b= 2

Answer 1

2a(3a-5b)-3a(2a-b)-12b(1/4-a)-6a(2b-1/3)=12/5=2 2/5= 2,4