[FONT=MathJax_Main]use the intermediate value theorem with a function [/FONT][FONT=MathJax_Math]f[/FONT][FONT=MathJax_Main]([/FONT][FONT=MathJax_Math]x[/FONT][FONT=MathJax_Main])[/FONT][FONT=MathJax_Main] =[/FONT][FONT=MathJax_Math] x[FONT=MathJax_Math]q [/FONT][/FONT][FONT=MathJax_Math]w[/FONT][FONT=MathJax_Math]h[/FONT][FONT=MathJax_Math]e[/FONT][FONT=MathJax_Math]r[/FONT][FONT=MathJax_Math]e[/FONT][FONT=MathJax_Math] q[/FONT][FONT=MathJax_Main]>[/FONT][FONT=MathJax_Main]0[/FONT][FONT=MathJax_Main] to show that for any number a there is a number [/FONT][FONT=MathJax_Math]b[/FONT][FONT=MathJax_Main] such that [/FONT][FONT=MathJax_Math]b[FONT=MathJax_Math]q[/FONT][/FONT][FONT=MathJax_Main]=[/FONT][FONT=MathJax_Math]a[/FONT][FONT=MathJax_Main].[/FONT]
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