What is -1^2+2(-1)-1 ?

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

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-1^2+2(-1)-1

- 1^{2} + 2 (- 1) - 1

- 4

Solution steps

- 1^{2} + 2 (- 1) - 1

Follow the PEMDAS order of operations

Calculate exponents

1^{2} : 1

= - 1 + 2 (- 1) - 1

Multiply and divide (left to right)

2 (- 1) : - 2

= - 1 - 2 - 1

Add and subtract (left to right)

- 1 - 2 - 1 : - 4

= - 4

(- 2) \times (- 2)^{3}

3 \times 19 \times 14 + 18 \div 2

25 + (500 + 700 \div 20) - 5 + 30 - 7

\frac{1}{3} + \frac{2}{4}

- 250 + 300 - 120 + 51