document.write( "Question 173123: -(3*7 < = -4 power 2 -8(x-2)+7x < = -(12*3)
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\n" ); document.write( " 14/2 ) (2/3x + 17y)power 0 +5 -3 power 2\r
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\n" ); document.write( "this is extra credit but I got 50>= x >= 56 which can't be correct?
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Algebra.Com's Answer #127968 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'm assuming that the inequality is \r
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\n" ); document.write( "\n" ); document.write( "First, note that ANY number (except 0) to the zeroth power is 1. So this means that \"%28%282%2F3%29x+%2B+17y%29%5E0=1\"\r
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\n" ); document.write( "\n" ); document.write( "Also, -3*7=-21 and \"14%2F2=7\". So the left side goes from \"%0D%0A-%283%2A7%29%2F%2814%2F2%29\" to \"-21%2F7\" which reduces to \"-3\"\r
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\n" ); document.write( "\n" ); document.write( "Also, -12*3=-36 and \"-3%5E2=-9\". So the right side goes from \"-%2812%2A3%29%2F%28-3%5E2%29\" to \"-36%2F%28-9%29\" which reduces to \"4\"\r
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\n" ); document.write( "\n" ); document.write( "So the inequality\r
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\n" ); document.write( "\n" ); document.write( "simplifies to \r
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\n" ); document.write( "\n" ); document.write( "\"-3%3C=%28-4%5E2-8%28x-2%29%2B7x%29%2F%281%2B5%29%3C=4\" \r
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\n" ); document.write( "\n" ); document.write( "\"-3%3C=%28-4%5E2-8%28x-2%29%2B7x%29%2F%281%2B5%29%3C=4\" Start with the given compound inequality\r
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\n" ); document.write( "\n" ); document.write( "\"-3%3C=%28-16-8%28x-2%29%2B7x%29%2F%281%2B5%29%3C=4\" Square 4 to get 16\r
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\n" ); document.write( "\n" ); document.write( "\"-3%3C=%28-16-8x%2B16%2B7x%29%2F%281%2B5%29%3C=4\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"-3%3C=%28-x%29%2F%286%29%3C=4\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"-18%3C=-x%3C=24\" Multiply ALL sides by 6\r
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\n" ); document.write( "\n" ); document.write( "\"18%3E=-x%3E=-24\" Divide ALL sides by -1 to isolate \"x\" (this will flip the signs)\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the solution is \"-24%3C=x%3C=18\"\r
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\n" ); document.write( "\n" ); document.write( "So the answer in interval notation is []\r
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\n" ); document.write( "\n" ); document.write( "Also, the answer in set-builder notation is \r
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\n" ); document.write( "\n" ); document.write( "Here's the graph of the solution set on a number line:\r
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\n" ); document.write( "\n" ); document.write( " Graph of the solution set\r
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\n" ); document.write( "\n" ); document.write( "Note:\r
\n" ); document.write( "\n" ); document.write( "There is a closed circle at \"x=-24\" which means that we're including this value in the solution set\r
\n" ); document.write( "\n" ); document.write( "Also, there is a closed circle at \"x=18\" which means that we're including this value in the solution set.
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