We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-6
175
1
avatar+5 

6.) Write the equation of a polynomial that has zeros of 1, 7 and –4 and a leading coefficient of 1.

 Feb 16, 2019
 #1
avatar+104648 
+2

Not too bad, GM

 

(x -1) ( x - 7) ( x + 4)           expand the first two terms

 

(x^2 - 8x + 7) ( x + 4)

 

x(x^2 - 8x + 7)   + 4(x^2 - 8x + 7)

 

x^3 - 8x^2 + 7x  + 4x^2 - 32x + 28  =

 

x^3 - 4x^2 - 25x + 28

 

cool  cool  cool

 Feb 16, 2019

13 Online Users

avatar