document.write( "Question 913967: The height of a right triangle is 3 feet more than three times the length of its base. Express the area of the triangle as a function of the length of its base, x, in feet. \n" ); document.write( "
Algebra.Com's Answer #554816 by mananth(16946)\"\" \"About 
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base =x\r
\n" ); document.write( "\n" ); document.write( "height = 3x+3\r
\n" ); document.write( "\n" ); document.write( "A= 1/2 base * h\r
\n" ); document.write( "\n" ); document.write( "A= 1/2 * x*(3x+3)\r
\n" ); document.write( "\n" ); document.write( "= 3/2*x(x+1)
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