Apr 01, 2009 20:45
The directions for this are to factor. I cannot come up with the correct answer, because there are no factors of 15 that will equal -17. Is there something I am doing wrong?
4x2 - 17x + 15
(2x + ?) (2x + ?)
Factors of 15 (1, 15) (-1,-15) (3,5) (-3,-5)
The other problem I ran into was:
The area of a triangle is 35 cm2. The height is 3 centimeters shorter than the base. How long are the base and the height.
½ bh
½ b(b-3) = 35
I have no idea where to go. I know we are supposed to factor and use the zero product rule.