Question

3x^2-5x+15=3x^2-kx+3k find the value of k​

Answer 1

Answer:

k=5

Step-by-step explanation:

3x²-5x+15=3x²-kx+3k

3x²-3x²-5x+15= -kx+3k

-5x+15= -kx+3k

-5(x-3)= -k(x-3)

-5= -k(x-3)/(x-3)

-5= -k

k=5