10q2+9q+2
need the formula to solve
10q2+9q+2
need the formula to solve
The two things to look at are the factors of your quadratic (2nd degree term) and the constant term.
10q^{2} ==> q and 10q, 2q and 5q
2 ==> 1 and 2
Now, which combinations of these, when added together, equal 9q?
q * 1 + 10q * 2 ==> 21q (no)
q * 2 + 10q * 1 ==> 12q (no)
2q * 2 + 5q * 1 ==> 9q (yes)
So our factors would be (2q + 1)(5q + 2)