20. What is the value of an expression 3x² -1 if x = -2?
a. 11
b. -13
c. -13
d. 12
Nonsense Report!!
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20. What is the value of an expression 3x² -1 if x = -2?
a. 11
b. -13
c. -13
d. 12
Nonsense Report!!
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