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Answer :

Answer:

a. 0= 3^3-2(3)^2-2(3)-3

(set the equation to zero. x=3, so plug 3 into all of the x's ^^)

27-18-6-3

(do all of the multiplying and stuff ^^)

0

(combine like terms ^^)

Step-by-step explanation:

i hope this helps!!