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| Math Central | Quandaries & Queries |
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Question from Lloyd, a student: Solve the equation 2^2x + 3(2^x) - 4 = 0 |
Hi Lloyd,
I can give you a hint.
\[2^{2x} = \left(2^x\right)^{2}.\]
Write back if you need more assistance,
Penny
Lloyd wrote back
Hi Penny
Please give me more hints I believe I will catch up.
Regards,
Lloyd
Lloyd,
After you have rewritten the equation with $2^{2x}$ replaced as I suggested above, let $y = 2^x$ and see if you can deal with the resulting equation.
Penny
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