Question

how to find out if a=2 and b=5

Answer 1

suppose any equation is given like 6a^2+6b-5a-8a^2

so if a = 2 and b= 5 then

6(2)^2+6(5)-5(2)-8(2)^2
24+30-10-32
54-42
8
Ans = +8


thanks