#### JOSE JAIME-RODRIGUEZ

##### New member

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- Feb 8, 2006

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- 22

Here is the problem: 18+7x^2-x^4

Thank you for putting your time and effort in helping me with this problem.

- Thread starter JOSE JAIME-RODRIGUEZ
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- Joined
- Feb 8, 2006

- Messages
- 22

Here is the problem: 18+7x^2-x^4

Thank you for putting your time and effort in helping me with this problem.

Start by changing the signs (or multiplying by -1):JOSE JAIME-RODRIGUEZ said:The directions say to factor but I am not sure if the problem is factorable or not.Any directions or advice would be fully appreciated.

Here is the problem: 18+7x^2-x^4

x^4 - 7x^2 - 18 ; now simply factor:

(x^2 - 9)(x^2 + 2)

- Joined
- Feb 8, 2006

- Messages
- 22

Thank you Denis and Skeeter I could now finish this problem.Thank you for your help