document.write( "Question 170010: Please Help. Thank You.\r
\n" ); document.write( "\n" ); document.write( "Increasing cube. Each of the three sides of a cube with
\n" ); document.write( "sides of x centimeters is increased by a whole number of
\n" ); document.write( "centimeters. The new volume in cubic centimeters is
\n" ); document.write( "given by
\n" ); document.write( "V(X)= x^3 + 10x^2 + 31x + 30.\r
\n" ); document.write( "\n" ); document.write( "a) Find V(3).\r
\n" ); document.write( "\n" ); document.write( "b) If the new height is x + 2 centimeters, then what are the
\n" ); document.write( "new length and width?\r
\n" ); document.write( "\n" ); document.write( "c) Find the volume when x =3 by multiplying the length,
\n" ); document.write( "width, and height.
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Algebra.Com's Answer #125508 by ankor@dixie-net.com(22740)\"\" \"About 
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Increasing cube. Each of the three sides of a cube with
\n" ); document.write( "sides of x centimeters is increased by a whole number of
\n" ); document.write( "centimeters. The new volume in cubic centimeters is
\n" ); document.write( "given by
\n" ); document.write( "V(X)= x^3 + 10x^2 + 31x + 30.
\n" ); document.write( ":
\n" ); document.write( "a) Find V(3).
\n" ); document.write( ":
\n" ); document.write( "V(3)= 3^3 + 10(3^2) + 31(3) + 30.
\n" ); document.write( "V(3) = 27 + 90 + 93 + 30
\n" ); document.write( "V(x) = 240 cu/cm
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "b) If the new height is x + 2 centimeters, then what are the
\n" ); document.write( "new length and width?
\n" ); document.write( ":
\n" ); document.write( "Divide x^3 + 10x^2 + 31x + 30 by (x+2); using synthetic division:
\n" ); document.write( "......________________
\n" ); document.write( " -2 | 1 + 10 + 31 + 30
\n" ); document.write( ":
\n" ); document.write( " you get: x^2 + 8x + 15 as length * width
\n" ); document.write( "Factor this to get the length and the width
\n" ); document.write( "(x + 5)(x + 3)
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\n" ); document.write( ":
\n" ); document.write( "c) Find the volume when x = 3 by multiplying the length, width, and height
\n" ); document.write( ":
\n" ); document.write( "Just substitute 3 for x in (x+2), (x+5), (x+3)
\n" ); document.write( ":
\n" ); document.write( "Multiply these these values to find the volume
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