Thursday

April 2, 2015

April 2, 2015

Posted by **George** on Wednesday, December 31, 2008 at 5:40pm.

169x^3-1690x^2-9x+90; x-10

- Math -
**drwls**, Wednesday, December 31, 2008 at 6:07pmThis is an exercise in polynomial long division. Divide 169x^3 -1690x^2 -9x +90 by x-10 to get the quotient, which is 169 x^2 - 9. That happens to be the difference of the squares of 13x and 3. So it is possible to factor the quotient one more time.

If you need to review polynomial long division, see

http://www.sosmath.com/algebra/factor/fac01/fac01.html

This division turns out to be an easy one, with no remainder.

- Math -
**George**, Wednesday, December 31, 2008 at 6:17pmThanks!

- Math -
**drwls**, Thursday, January 1, 2009 at 5:51amThe complete answer is

169x^3 - 1690x^2 - 9x + 90

= (x-10)(13x + 3)(13x - 3)

**Answer this Question**

**Related Questions**

Pre Calculus - How are the factors of a polynomial related to the x-intercepts ...

Algebra -polynomial - Solve the polynomial 40x^2+2x-65 Notice that for x = 1 the...

math - how often does a leap year occur? what are al the prime numbers less then...

algebra 2 - The factors of a polynomial are (x + 3)(x - 2)(x + 7). How do the ...

Math - find an equation for a ploynomial function with zeros, negative 8, ...

Math urgent - Find a degree 6 polynomial with - 8 as a root, no other roots, and...

Math - What answers this definition: A polynomial, you would write the ...

Math - blank is a polynomial, you would write the polynomial as a product of ...

math - Consider the polynomial x^3 + 6x^2 + 3x - 10. Without dividing, or ...

Trigenometry Math - Using the factors (-5x+4) and (x+1), find the remaining ...