document.write( "Question 251074: I am confused about this problems.
\n" ); document.write( "Multiply.
\n" ); document.write( "(x^2)×(x^2+6x+9)/(x^2 9) (16x^3)
\n" ); document.write( "Divide.
\n" ); document.write( "(3y+12)÷(9y+36)/(8y^3)(16y^3)\r
\n" ); document.write( "\n" ); document.write( "Perform the indicated operation. When no operation is indicated, simplify the ratinal expression completely.
\n" ); document.write( "(10m^4)×/(9a^2) (3a^2b)
\n" ); document.write( "(3x^2-5x)/(18x-30)
\n" ); document.write( "Thank you in advance
\n" ); document.write( "

Algebra.Com's Answer #184378 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
Multiply.
\n" ); document.write( "\"%28x%5E2%29%2A%28x%5E2%2B6x%2B9%29%2F%28x%5E2-9%29%2A%2816x%5E3%29\"
\n" ); document.write( "I assumed a minus sign between X^2 and 9 and then multiplication sign separating denominator fractions.
\n" ); document.write( "first, factor everything.
\n" ); document.write( "numerator is
\n" ); document.write( "x^2(x+3)(x+3).
\n" ); document.write( "denominator is
\n" ); document.write( "(x+3)(x-3)(16x^3).
\n" ); document.write( "together, we get
\n" ); document.write( "\"x%5E2%28x%2B3%29%28x%2B3%29\" / \"%28x%2B3%29%28x-3%29%2816x%5E3%29\"
\n" ); document.write( "Now, we cancel: x=3 from top and bottom. X^2 from top and bottom. We get
\n" ); document.write( "\"%28x%2B3%29\" / \"%28x-3%29%2816x%29\"\r
\n" ); document.write( "\n" ); document.write( "-----
\n" ); document.write( "Divide.
\n" ); document.write( "\"%283y%2B12%29%F7%289y%2B36%29\"/\"%288y%5E3%29%2816y%5E3%29\"
\n" ); document.write( "First step multiply by reciprocal:
\n" ); document.write( "\"%283y%2B12%29%2A%288y%5E3%29%2816y%5E3%29%2F%289y%2B36%29\"
\n" ); document.write( "Second step is to factor.
\n" ); document.write( "numerator becomes: \"3%28y%2B4%29%2A8y%5E3%2A16y%5E3\"
\n" ); document.write( "denominator becomes: \"9%28y%2B4%29\"
\n" ); document.write( "together we get:\"3%28y%2B4%29%2A8y%5E3%2A16y%5E3\" / \"9%28y%2B4%29\"
\n" ); document.write( "canceling the y+4 and the 3 with the 9, we get:
\n" ); document.write( "128y^6 / 3
\n" ); document.write( "-------
\n" ); document.write( "Perform the indicated operation. When no operation is indicated, simplify the rational expression completely.
\n" ); document.write( "(i) (10m^4)×/(9a^2) (3a^2b) -> I am not clear as to the x/ next to each other.\r
\n" ); document.write( "\n" ); document.write( "(ii) (3x^2-5x)/(18x-30)
\n" ); document.write( "step 1 - factor: x(3x-5) / 6(3x-5)
\n" ); document.write( "step 2 - reduce: x/6.\r
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