Monday

December 22, 2014

December 22, 2014

Posted by **Marty** on Tuesday, September 4, 2007 at 5:24pm.

Help! I have no clue how to factor this! Do i have to square root everything?

- Math -
**mathstudent**, Tuesday, September 4, 2007 at 5:27pm(x^2 + 5)(x^2 - 4)

If you set y = x^2 and look at the original as:

y^2 + y - 20

It should factor easily to

(y + 5)(y - 4)

which equals:

(x^2 + 5)(x^2 - 4)

- Math -
**Marty**, Tuesday, September 4, 2007 at 5:29pmso would the final answer be (x^2 + 5)(x^2 - 4) or (y + 5)(y - 4) ???

- Math -
**mathstudent**, Tuesday, September 4, 2007 at 5:48pmThe final answer is

(x^2 + 5)(x^2 - 4)

If you multiply that, you will get your original equation.

- Math -

- Math -

**Answer this Question**

**Related Questions**

Algebra - Rationalize each expression by building perfect nth root factors for ...

Algebra - Solve 2+ the square root of 4-x=x what is your question? ok lets start...

ALGEBRA - 1, Factor each expression x^2 - 10x - 24 A. (x + 4)(x - 6) B. (x + 6)(...

Math - Could someone please help me with this math problem? This is what I have ...

MATH - Which expression is a polynomial???? A: 11 0ver the square root of x B: ...

Pre-Calculus - I think I need help with this problem- 3+ square root(x-6) = ...

trigonometry - Write the quadratic function whose zeros are: 1. 2+square root of...

Trigonometry - Write the quadratic function whose zeros are: 1. 2+square root of...

MATH - how do you simplify square root of 27 minus square root of 49 all divided...

Math simplifying mixed radicals - Please help me simplify these following mixed ...