Question

If a = 10 = 30 and c = 20. find the value of - ab + bc - ac​

Answer 1

Answer:

a=10

b=30

c=20

ab+bc-ac

300+600-200

700 ans.

Answer 2

Answer:

a=10

b=30

c=20

a×b=10×30=300

b×c=30×20=600

c×a=20×10=200

so they asked in the form of -ab+bc-ac

= -300+600-200