How do you write 3x2+2.4x in the form a(x+p)2+q and state the value of a, p and q?
Expand a(x+p)2 + q as ax2 + 2apx + ap2 + q
Compare with 3x2 + 2.4x term by term:
x2 term: a = 3
x term: 2ap = 2.4
constant term: ap2 + q = 0
Use these three equations to find a, p and q.