Question

For what value of k the expressions
3x
2 − 5x + 15 and 3x

2 − kx + 3k are equal​

Answer 1

Step-by-step explanation:

$3 {x}^{2} - 5x + 15 = 3 {x}^{2} - kx + 3k$

$3 {x}^{2}$

gets cancelled

so

-5x + 15 = -kx + 3k

comparing LHS and RHS

K =5

HOPE THIS HELPS