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

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-1^2-4(-1)

Solution

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

3

Solution steps

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

Follow the PEMDAS order of operations

Calculate exponents

1^{2} : 1

1^{2}

1^{2} = 1

= 1

= - 1 - 4 (- 1)

Multiply and divide (left to right)

4 (- 1) : - 4

4 (- 1)

Apply rule

a \cdot (- b) = - a \cdot b

4 (- 1) = - 4 \cdot 1 = - 4

= - 4

= - 1 - (- 4)

Add and subtract (left to right)

- 1 - (- 4) : 3

- 1 - (- 4)

Apply rule

- (- a) = + a

- (- 4) = + 4

= - 1 + 4

- 1 + 4 = 3

= 3

= 3

- (- 4 - 5) - (- 5 - 6 + 3) + (+ 2 - 5 - 1)

8 \times + 9 - 12 \times 4 \times 13 - 5

(- 3 - 11) \times (1 - 5)^{2}

3 \cdot 5 \cdot \frac{4}{5} + 2 \cdot 5^{2}

(- 7) + 12 + 6 + (- 5) + (- 3) + 7