Posted by Melinda on Friday, December 9, 2011 at 1:23am.
Determine the xintercepts of the polynomial function y=6(x+7)^4 + 5. Round to two decimal places, if necessary.
y=6(x+7)^4 + 5
0=6(x+7)^4 + 5
5=6(x+7)^4
5/6 =(x+7)^4
There are no xintercepts??

precalculus  Steve, Friday, December 9, 2011 at 11:39am
Since it's a parabola opening downward, and is shifted up 5 units, you know that it will have two xintercepts. So, what went wrong?
You lost a "" sign after the 2nd line.
5 = 6(x+7)^4
5/6 = (x+7)^4
±(5/6)^(1/4) = x+7
x = 7 ±(5/6)^(1/4) = 7 ± .955
Answer This Question
Related Questions
 Precalc  Determine the xintercepts of the polynomial function y=6(x+7)^4 + 5...
 PreCalculus  I'm trying to find the xintercepts of a polynomial function = 4x^...
 Math  If a graph of a quadratic function can have 0, 1 or 2 xintercepts. How ...
 quadratic functions  The graph of a quadratic function can have 0, 1 or 2 x...
 math  round result to two decimal places...the answer i have is: 7.023 so two ...
 precalculus  Help appreciated~ 1.Use the quadratic formula to determine when f(...
 GED MATH  You are given an equation of the form y = ax2 + bx + c. y = 4x2 + 2x...
 math  a)predict th erelationship between the graph of y=x^4+x^3 and the graph ...
 Algebra I  Did I do these probelms correctly? Find the intercepts 1. y^2 = x^2...
 Pre Calculus  How are the factors of a polynomial related to the xintercepts ...
More Related Questions