document.write( "Question 880977: how do I solve w²-3w+11 \n" ); document.write( "
Algebra.Com's Answer #531831 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'm assuming you meant to say \"w%5E2+-+3w+%2B+11=0\"\r
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Solved by pluggable solver: Quadratic Formula
Let's use the quadratic formula to solve for w:

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\n" ); document.write( " Starting with the general quadratic
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\n" ); document.write( " \"aw%5E2%2Bbw%2Bc=0\"
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\n" ); document.write( " the general solution using the quadratic equation is:
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\n" ); document.write( " \"w+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29\"
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\n" ); document.write( " So lets solve \"w%5E2-3%2Aw%2B11=0\" ( notice \"a=1\", \"b=-3\", and \"c=11\")
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\n" ); document.write( " \"w+=+%28--3+%2B-+sqrt%28+%28-3%29%5E2-4%2A1%2A11+%29%29%2F%282%2A1%29\" Plug in a=1, b=-3, and c=11
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\n" ); document.write( " \"w+=+%283+%2B-+sqrt%28+%28-3%29%5E2-4%2A1%2A11+%29%29%2F%282%2A1%29\" Negate -3 to get 3
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\n" ); document.write( " \"w+=+%283+%2B-+sqrt%28+9-4%2A1%2A11+%29%29%2F%282%2A1%29\" Square -3 to get 9 (note: remember when you square -3, you must square the negative as well. This is because \"%28-3%29%5E2=-3%2A-3=9\".)
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\n" ); document.write( " \"w+=+%283+%2B-+sqrt%28+9%2B-44+%29%29%2F%282%2A1%29\" Multiply \"-4%2A11%2A1\" to get \"-44\"
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\n" ); document.write( " \"w+=+%283+%2B-+sqrt%28+-35+%29%29%2F%282%2A1%29\" Combine like terms in the radicand (everything under the square root)
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\n" ); document.write( " \"w+=+%283+%2B-+i%2Asqrt%2835%29%29%2F%282%2A1%29\" Simplify the square root (note: If you need help with simplifying the square root, check out this solver)
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\n" ); document.write( " \"w+=+%283+%2B-+i%2Asqrt%2835%29%29%2F%282%29\" Multiply 2 and 1 to get 2
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\n" ); document.write( " After simplifying, the quadratic has roots of
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\n" ); document.write( " \"w=3%2F2%2Bsqrt%2835%29%2F2%2Ai\" or \"w=3%2F2-sqrt%2835%29%2F2%2Ai\"
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\n" ); document.write( "\n" ); document.write( "Note: \"i+=+sqrt%28-1%29\"
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