document.write( "Question 634606: Solve the following exponential equations:
\n" ); document.write( "a) 7^x=49
\n" ); document.write( "b) 243 = 9^2x+1
\n" ); document.write( "c) 2^2x * 4^4x +8 = 64
\n" ); document.write( "d)9^x-1 * 81 ^2x-1 = 27^3x-2 \n" ); document.write( "

Algebra.Com's Answer #399815 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "the idea is to have the base numbers the same ⇒ Exponents are Equal
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document.write( "a) 7^x=49   ⇒  7^x = 7^2   ⇒  x = 2
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document.write( "b) 243 = 9^2x+1  ⇒    ⇒  5 = 2(2x+1), x = 3/4
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document.write( "c) 2^2x * 4^4x +8 = 64  ⇒  , x= -1
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document.write( "d)9^x-1 * 81 ^2x-1 = 27^3x-2  ⇒  x = 0  \n" );
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