[SOLVED] Equations and Inequalities with Logs and Exponents

**juicysharpie** · April 23rd 2009, 02:12 AM

Hey, could someone please help me with this problem? I'm not quite sure how to do it.

$<br /> 10x^{2}+3(10^{x})-10=0<br />$

Thanks for the help! I'm stumped.

**mr fantastic** · April 23rd 2009, 04:55 AM

Originally Posted by juicysharpie

Hey, could someone please help me with this problem? I'm not quite sure how to do it.

$<br /> 10x^{2}+3(10^{x})-10=0<br />$

Thanks for the help! I'm stumped.

Are you sure the equation is not meant to be $(10^x)^{2} +3(10^{x})-10=0$ , which factorises: $(10^x + 5)(10^x - 2) = 0$ .

**juicysharpie** · April 23rd 2009, 01:26 PM

Yes, you're right. That was stupid. Thanks for catching my mistake!

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