document.write( "Question 1080238: Find the zeros of the polynomial function and state the multiplicity of each
\n" ); document.write( "F(x) = 5(x+7)^2 (x-7)^3
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Algebra.Com's Answer #694424 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Note: the term \"zeros\" is the same as \"roots\"\r
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\n" ); document.write( "\n" ); document.write( "We have this as our original function
\n" ); document.write( "F(x) = 5(x+7)^2 (x-7)^3\r
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\n" ); document.write( "\n" ); document.write( "I'm going to highlight the exponents in different colors red and blue so things are separated clearly.
\n" ); document.write( "F(x) = 5(x+7)^2 (x-7)^3
\n" ); document.write( "These exponents will be important for identifying the multiplicity.\r
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\n" ); document.write( "\n" ); document.write( "To find the roots, we need to set f(x) equal to zero and solve for x\r
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\n" ); document.write( "\n" ); document.write( "F(x) = 0
\n" ); document.write( "5(x+7)^2 (x-7)^3 = 0
\n" ); document.write( "(x+7)^2 = 0 or (x-7)^3 = 0
\n" ); document.write( "x+7= 0 or x-7 = 0
\n" ); document.write( "x = -7 or x = 7\r
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\n" ); document.write( "\n" ); document.write( "So the two distinct roots are x = -7 or x = 7\r
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\n" ); document.write( "\n" ); document.write( "The root x = -7 has multiplicity 2. Take note of the specific color coding. This 2 is an exponent for the term (x+7) which is where the root is derived from.\r
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\n" ); document.write( "\n" ); document.write( "Similarly, the root x = 7 has multiplicity 3 because the 3 is the exponent for (x-7). \r
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\n" ); document.write( "\n" ); document.write( "Extra info: an even multiplicity (such as 2) means that the graph touches the x axis and turns around. Think of a parabola like shape. See the graph below where point A is located for a visual example. An odd multiplicity root is one where the graph crosses over the x axis and keeps going (though it might turn around at some point). A visual example of this is the root where point B is located in the graph below.\r
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\n" ); document.write( "\n" ); document.write( "Here is what the graph looks like
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\n" ); document.write( "Image generated by GeoGebra (free graphing software).
\n" ); document.write( "The arrows indicate that the graph continues on forever along that general curve path (but the window cuts things off).
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