Question

Solve. 2k^2+25=15k

Answer 1

Do you know factorization?

Answer 2

A little bit

Answer 3

Okay, so the first step is to put all on the same side.
So 2k^2+25=15k
becomes
2k^2-15k+25= 0
Got it?

Answer 4

I got it.

Answer 5

Then try to think of two numbers such that when you multiply them you get 2*25, and when you add them, you get -15.
It takes practice. What two numbers can you think of?

Answer 6

Does it have to give me 25.

Answer 7

2*25, so 50.

Answer 8

The numbers are -10 and -5. -10+-5 = -15 and -10*-5 = 50.
So you have 2k^2-10k - 5k+25= 0
Now factorize.