What is 3(2)^2-12(2)+9 ?

The solution to 3(2)^2-12(2)+9 is -3

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3(2)^2-12(2)+9

3 (2)^{2} - 12 (2) + 9

- 3

Solution steps

3 (2)^{2} - 12 (2) + 9

Follow the PEMDAS order of operations

Calculate exponents

(2)^{2} : 4

= 3 \cdot 4 - 12 (2) + 9

Multiply and divide (left to right)

3 \cdot 4 : 12

= 12 - 12 (2) + 9

Multiply and divide (left to right)

12 (2) : 24

= 12 - 24 + 9

Add and subtract (left to right)

12 - 24 + 9 : - 3

= - 3

5 a^{3} + 15 a^{2} - 10 a - 30

7 f < 14

218

lo g_{\frac{1}{2}} (64)

100 p^{2} - 9 q^{2}