Question

Calculate the value of k if 5x²-6x-k=5 , when x=3

Answer 1

Solution -: We are given 5x²-6x-k=5 , we need to solve for k if x= 3
so we will replace x by 3 we will get .

5(3)^2-6(3)-k = 5
5*9-18-k = 5
45 -18-k=5
27 -k =5
- k = 5-27
-k =-22
k=22 answer