Answer:1,152
you have to multiply each side :)
Step-by-step explanation:
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Answer:
below
Step-by-step explanation:
f(3)=2
f(20)=0
f(8)=4
f(0)=-1
if f(x)=9 then x=4
if f(x)=4 then x=8
f(x)=0 then x=20
X^4+ 3x^3+4x^2-8 | x+2 = x^3+x^2+2x-4
-x^4-2x^3
-----------------------
x^3+4x^2-8
-x^3-2x^2
-------------------------
2x^2-8
-2x^2-4x
--------------
-4x-8
4x+8
----------------------------
/ /
is a factor because (x+2)(x^3+x^2+2x-4)=x^4+3x^3+4x^2-8