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24-02-2021
Mathematics

contestada

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

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

Respuesta :

sqdancefan sqdancefan

24-02-2021

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

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