SOLUTION: Show that {{{p(x)=2x^3-4x^2+5x-6}}} has a zero between -1 and 2
Algebra.Com
Question 140328: Show that has a zero between -1 and 2
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation
Plug in
Multiply and combine like terms
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Go back to the given equation
Plug in
Multiply and combine like terms
Since (which is negative) and (which is positive), this means that the graph has crossed the x-axis. So there is a zero in between -1 and 2
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