Homework Help: Integrated Math 1 (help please??:( )

Posted by Tifini on Tuesday, July 10, 2012 at 12:51pm.

You can factor the polynomial f(x)=x^2-19x+70 as (x+a(x+b). The values for a and b are _____.

A. a=10, b=-9

B. a=19, b=70

C. a=-5, b=-14

D. a=-16, b=3

E. none of the above.

Integrated Math 1 (help please??:( ) - Tifini, Tuesday, July 10, 2012 at 12:53pm
(x+a)(x+b) is what i meant.. sorry!
Integrated Math 1 (help please??:( ) - bobpursley, Tuesday, July 10, 2012 at 1:02pm
ab=70. Which choice does that.
Integrated Math 1 (help please??:( ) - Steve, Tuesday, July 10, 2012 at 1:02pm
since 70 = 5*14,

(x-5)(x-14)

so, (C)

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