Question 939079
y=x^3+4x^2;  y=3x+18
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x^3+4x^2 = 3x+18
x^3 + 4x^2 - 3x - 18 = 0  
x = 2 a solution {{{8+16-6-18 = 0}}}
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Using Synthetic Div1sion
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
2	1	4	-3	-18
		2	12	18
	1	6	9	0
x^3 + 4x^2 - 3x - 18 = (x-2)(x^2 + 6x + 9)
will Let You finish it Up