document.write( "Question 993358:  I know how to find increasing and decreasing but I am having trouble finding this one: \r
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document.write( "f(x) = −2(x + 1)2 + 4\r
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document.write( "Increasing:? 
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document.write( "Decreasing:?\r
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document.write( "Please explain your answer so that I understand. Thank you! \n" );
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Algebra.Com's Answer #612609 by stanbon(75887)    ![]() You can put this solution on YOUR website! f(x) = −2(x + 1)^2 + 4 \n" ); document.write( "f(x) = -2(x^2+2x+1) + 4 \n" ); document.write( "f(x) = -2x^2-4x+2 \n" ); document.write( "------------------- \n" ); document.write( " \n" ); document.write( "---------------------- \n" ); document.write( "Take the derivative to get: \n" ); document.write( "f'(x) = -4x-4 \n" ); document.write( "--- \n" ); document.write( "Increasing:? \n" ); document.write( "Solve: -4x-4 > 0 \n" ); document.write( "-4x > 4 \n" ); document.write( "x < -1 \n" ); document.write( "Increasing on (-oo,-1) \n" ); document.write( "----------------------------- \n" ); document.write( "Decreasing:? \n" ); document.write( "Solve: -4x-4 < 0 \n" ); document.write( "-4x < 4 \n" ); document.write( "x > -1 \n" ); document.write( "Decreasing on (-1,+oo) \n" ); document.write( "=========== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "  |