document.write( "Question 1047942: I tried to type these up on here but I kept getting bad expression errors so I took a picture. I have no idea where or how to even start. Thanks
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\n" ); document.write( "\n" ); document.write( "Expand and then simplify.
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Algebra.Com's Answer #663502 by josgarithmetic(39623)\"\" \"About 
You can put this solution on YOUR website!
I am only showing some work for question \"a\".
\n" ); document.write( "Learn to use pure text to show arithmetical or algebraic expressions, and enclose each in the triple-curly-braces rendering tags.\r
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\n" ); document.write( "\n" ); document.write( "(a)\r
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\n" ); document.write( "\n" ); document.write( "()(), will show multiplication between two expressions, but nothing yet placed in these parentheses;\r
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\n" ); document.write( "\n" ); document.write( "(()/())(()/()), will show two rational expressions being multiplied, but still, nothing yet placed in the parentheses.\r
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\n" ); document.write( "\n" ); document.write( "((x-y)/(sqrt(x)-sqrt(y)))((sqrt(x)+sqrt(y))/(sqrt(x)+sqrt(y))), this shows the full expression, and is obviously difficult to read using your viewing on the page. \r
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\n" ); document.write( "\n" ); document.write( "Putting that entire expression between left triple braces, and right triple braces, will \"render\" the expression in a better appearance, nearly as well as but sometimes still not as good as what you would write on paper:\r
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\n" ); document.write( "\n" ); document.write( "STEPS TO SIMPLIFY\r
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\n" ); document.write( "\n" ); document.write( "Use the fraction skills you already learned, and recognize the part which gives Difference Of Two Squares.\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%2Asqrt%28x%29-y%2Asqrt%28x%29%2Bx%2Asqrt%28y%29-y%2Asqrt%28y%29%29%2F%28x-y%29\"
\n" ); document.write( "but having done the multiplications in the numerator did not seem to be very helpful. Let's take that part back a step:\r
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\n" ); document.write( "\n" ); document.write( "\"%28%28x-y%29%28sqrt%28x%29%2Bsqrt%28y%29%29%29%2F%28x-y%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28cross%28%28x-y%29%29%28sqrt%28x%29%2Bsqrt%28y%29%29%29%2Fcross%28%28x-y%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28sqrt%28x%29%2Bsqrt%28y%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "--
\n" ); document.write( "Be sure to find some site composition help in page https://www.algebra.com/services/rendering/regression.mpl
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