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Popular >

(2-4)^2-1

Solution

(2 - 4)^{2} - 1

Solution

3

Solution steps

(2 - 4)^{2} - 1

Follow the PEMDAS order of operations

Calculate within parentheses

(2 - 4) : - 2

2 - 4

2 - 4 = - 2

= - 2

= (- 2)^{2} - 1

Calculate exponents

(- 2)^{2} : 4

(- 2)^{2}

Apply exponent rule:

(- a)^{n} = a^{n},

if

n

is even

(- 2)^{2} = 2^{2} = 4

= 4

= 4 - 1

Add and subtract (left to right)

4 - 1 : 3

4 - 1

4 - 1 = 3

= 3

= 3

Popular Examples

\frac{20}{4} - 5 + \frac{15}{5}

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1000-7\times (18\times 7)

1000 - 7 \times (18 \times 7)

6^2\times (16+19)-10^3

6^{2} \times (16 + 19) - 1 0^{3}

Frequently Asked Questions (FAQ)

What is (2-4)^2-1 ?
The solution to (2-4)^2-1 is 3