28 - 18 = 10.
150 x 10 = 1500
So all you've got to do is..
150 x 1500 = ???
You can do the rest lol
Nine more than a variable "a".
You don't solve a quadratic equation using completing the square
Answer:
-10x5 + 8x4 - 7x3 - 20x2 - x + 18
Step-by-step explanation:
