Answer:
y=60x-15x^2
Step-by-step explanation:
this one opens downwards
x^2 -9 = (x +3) (x-3)
x^2 -5x + 6 = (x -3) (x -2)
The common factor is (x-3)
https://faq.brainly.com/hc/en-us/articles/360014661139.
it's 6
B=7 and D=13, so 13-7= 6
6
