What is the value of the expression 9x2 - 12x + 4 when x = 3?
22
49
O
85
d
697

9514 1404 393
Answer:
(b) 49
Step-by-step explanation:
Put the value where x is in the expression and do the arithmetic.
9x² -12x +4 for x=3
9·3² -12·3 +4 = 9·9 -36 +4
= 81 -36 +4 = 49