What is 3(4)^2-6(4)-9 ?

The solution to 3(4)^2-6(4)-9 is 15

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3(4)^2-6(4)-9

3 (4)^{2} - 6 (4) - 9

15

Solution steps

3 (4)^{2} - 6 (4) - 9

Follow the PEMDAS order of operations

Calculate exponents

(4)^{2} : 16

(4)^{2}

(4)^{2} = 16

= 16

= 3 \cdot 16 - 6 (4) - 9

Multiply and divide (left to right)

3 \cdot 16 : 48

3 \cdot 16

3 \cdot 16 = 48

= 48

= 48 - 6 (4) - 9

Multiply and divide (left to right)

6 (4) : 24

6 (4)

Apply rule:

(a) = a

(4) = 4

= 6 \cdot 4

Multiply the numbers:

6 \cdot 4 = 24

= 24

= 48 - 24 - 9

Add and subtract (left to right)

48 - 24 - 9 : 15

48 - 24 - 9

48 - 24 = 24

= 24 - 9

24 - 9 = 15

= 15

= 15

3 \cdot 10 + 8 - 4^{2}

\frac{3}{8} + \frac{5}{8}

8 \cdot (8 + 4) - 5^{2}

2 (0)^{2} + 8 (0) - 4

7^{5} + 5^{2} /2 5^{0} - 5^{1}