Question

If k (x) = 5x - 6, which expression is equivalent to (k + k) (4)​

Answer 1

28

Explanation:

`k(x) = 5x -6\\\therefore k(4) = 5* 4 -6\\\therefore k(4) = 20 -6\\\therefore k(4) = 14\\\\\because (k+k)(4) = k(4) + k(4)\\\therefore (k+k)(4)= 14+14\\\huge\red{\boxed{\therefore (k+k)(4) = 28}}`