Any help would be appriciated!

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.

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