document.write( "Question 309595: I AM SUCH AN IDIOT.
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document.write( "I NEED HELP WITH EVERYTHING ABOUT ALGEBRA.
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document.write( "I DON'T UNDERSTAND ANYTHING.
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document.write( "INEVER UNDERSTOOD ANYTHING.
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document.write( "HELP ME.\r
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document.write( "1) x^2-2x-7= sqrt (5)\r
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document.write( "2) 3/5 = sqrt (9)\r
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document.write( "3) 56x -18x+ x^2= 17\r
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document.write( "4) sqrt (9) = sqrt (35)\r
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Algebra.Com's Answer #221488 by checkley77(12844) ![]() You can put this solution on YOUR website! ARE YOU SURE YOU HAVE COPIED THESE PROPLEMS CORRECTLY??? \n" ); document.write( "SOME OF THEM DON'T MAKE ANY SENSE (NUMBERS 2 & 4). \n" ); document.write( "-------------------------------------------------------- \n" ); document.write( "1) x^2-2x-7= sqrt (5) \n" ); document.write( "X^2-2X-7-2.236=0 \n" ); document.write( "X^2-2X-9.236=0 USING THE QUADRATIC EQUATION BELOW WE GET: \n" ); document.write( " \n" ); document.write( "X=(2+-SQRT[-2^2-4*1*-9.236])/2*1 \n" ); document.write( "X=(2+-SQRT[4+36.944)/2 \n" ); document.write( "X=(2+-SQRT40.944)/2 \n" ); document.write( "X=(2+-6.399)/2 \n" ); document.write( "X=(2+6.399)/2 \n" ); document.write( "X=8.399/2 \n" ); document.write( "X=4.199 ANS. \n" ); document.write( "X=(2-6.399)/2 \n" ); document.write( "X=-4.399/2 \n" ); document.write( "X=-2.199 ANS.\r \n" ); document.write( "\n" ); document.write( "2) 3/5 = sqrt (9) \n" ); document.write( "3/5=3 \n" ); document.write( "3=5*3 \n" ); document.write( "3=15 DOES NOT COMPUTE.\r \n" ); document.write( "\n" ); document.write( "3) 56x -18x+ x^2= 17 \n" ); document.write( "38X+X^2-17=0 \n" ); document.write( "X^2+38X-17=0 \n" ); document.write( " \n" ); document.write( "X=(-38+-SQRT[38^2-4*1*-17])/2*1 \n" ); document.write( "X=(-38+-SQRT[1,444+68])/2 \n" ); document.write( "X=-38+-SQRT1,512)/2 \n" ); document.write( "X=(-38+-38.88)/2 \n" ); document.write( "X=(-38+38.88)/2 \n" ); document.write( "X=.88/2 \n" ); document.write( "X=.44 ANS. \n" ); document.write( "X=(-38-38.88)/2 \n" ); document.write( "X=76.88/2 \n" ); document.write( "X=-38.44 ANS.\r \n" ); document.write( "\n" ); document.write( "4) sqrt (9) = sqrt (35) \n" ); document.write( "3=5.91 DOES NOT COMPUTE. \n" ); document.write( " \n" ); document.write( " |