What is 1/2 (4)^2-4 ?

The solution to 1/2 (4)^2-4 is 4

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1/2 (4)^2-4

\frac{1}{2} (4)^{2} - 4

4

Solution steps

\frac{1}{2} (4)^{2} - 4

Follow the PEMDAS order of operations

Calculate exponents

(4)^{2} : 16

= \frac{1}{2} \cdot 16 - 4

Multiply and divide (left to right)

\frac{1}{2} \cdot 16 : 8

= 8 - 4

Add and subtract (left to right)

8 - 4 : 4

= 4

(x + 2) (x - 12) - (3 x + 4) (x + 2)

(e^{- \frac{x}{4}})^{2}

f = 4 (4) - 1

20 a^{2} - 7 a - 40

2 m^{2} - 5 m - 3