Sunday

November 23, 2014

November 23, 2014

Posted by **Kelsie** on Thursday, March 19, 2009 at 6:46pm.

4x^2-18

7x^2-847

4x^2+18

- algebra -
**drwls**, Thursday, March 19, 2009 at 7:11pm4x^2-18 = (2x + sqrt18)(2x - sqrt18)

= 4[x + (3/2)sqrt2][x - (3/2)sqrt2]

On the second one, factor out the 7 and recognize that 121 = 11^2. Ypu will have the difference of two squares.

The third one requires imaginary factors.

4x^2 + 18 = 4(x^2 + 2*9/4)

= 4[x + i(3/2)sqrt2][ x - i(3/2)sqrt2]

**Answer this Question**

**Related Questions**

Algebra Question~! - Suppose you divide a polynomial by a binomial. How do you ...

algebra 1 - Can someone solve theses for me? Factor the polynomial x2 + 7x + 12 ...

algebra - Use the discriminant to find out whether this quadratic polynomial can...

algebra - Volume of a Box (Refer to the preceding exercise.) A box is ...

Algebra - What is 9x^2 +4x^2 Factor each polynomial completely. If a polynomial ...

mat117/algebra - factor each polynomial completely. to begin, state which method...

Algebra - 1. How do we find the greatest common factor of a polynomial? ...

Algebra - 1. How do we find the greatest common factor of a polynomial? ...

college algebra - Factor out the greatest common factor from each polynomial 9y^...

college algebra - factor out the greatest factor from each polynomial 15R-27