Math, asked by sourabhsahu7423, 1 year ago

obtain all zeros of polynomials xcube-9xsqure-12x+20 if 1 zero is -2

Answers

Answered by Anonymous
1
p(x)=x^3-9x^2-12x+20
x=-2
g(x)=x+2


x+2)x^3-9x^2-12x+20(x^2-11x+10
     - +x^3+2x^2
     -       -
-------------------------------------
               -11x^2-12x+20
       -        -11x^2-22x
                +         +
--------------------------------------
                            10x+20
              -            10x+20
                           -      -
---------------------------------------
                              0.

q(x)=x^2-11x+10
q(x)=x^2-10x-x+10
q(x)=x(x-10)-1(x-10)
(x-10)(x-1)
x=10,x=1.



Answered by Anonymous
0

Answer:

hiii

your answer is here!

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