7.8 Factoring Polynomials Completely Homework

Last updated about 2 years ago

7 questions

Factor the polynomial by grouping: y^{3} − 9y^{2} + y − 9 

_______ 

Factor the polynomial by grouping: 2s^{3} + 27 + 18s + 3s^{2} 
(hint: rewrite the polynomial)

_______ 

Factor the polynomial by grouping: 2a^{2} − 12b + 8ab − 3a 
(hint: rewrite the polynomial)

_______ 

Factor the polynomial completely: 36a^{4} − 4a^{2} 

_______ 

Factor the polynomial completely: 5w^{4} − 40w^{3} + 80w^{2} 

_______ 

Find the x-intercepts of the graph.


Smallest intercept: _______ 
Middle intercept: _______ 
Largest intercept: _______ 

MODELING REAL LIFE
A gift bag has width w and is in the shape of a rectangular prism. The volume of the gift bag is 1152 cubic inches. The height is greater than
the width. Let w = the width,  (2w+4) = length , (18-w) = height

V = lwh


What are the dimensions of the gift bag?

length: _______ 
width: _______ 
height: _______ 