SOLUTION: Factor the following polynomials. (1) 9-x^2 (2) 4x^2+81-36x (3) 4y^2+16y+16 (4) x^2-25/x+5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor the following polynomials. (1) 9-x^2 (2) 4x^2+81-36x (3) 4y^2+16y+16 (4) x^2-25/x+5       Log On


   

Question 430986: Factor the following polynomials.
(1) 9-x^2
(2) 4x^2+81-36x
(3) 4y^2+16y+16
(4) x^2-25/x+5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Recommend for 1-3 to multiply the factors using FOIL to verify those factors

F	First terms

O	Outside terms

I	Inside terms

L	Last terms

(1) 9-x^2                  (3-x)(3+x)

(2) 4x^2-36x+81            (2x-9)(2x-9)

(3) 4(y^2+4y+4)            4(y+2)(y+2)





(4)