What is -(-1)^2+7(-1)+2 ?

The solution to -(-1)^2+7(-1)+2 is -6

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-(-1)^2+7(-1)+2

- (- 1)^{2} + 7 (- 1) + 2

- 6

Solution steps

- (- 1)^{2} + 7 (- 1) + 2

Follow the PEMDAS order of operations

Calculate exponents

(- 1)^{2} : 1

(- 1)^{2}

Apply exponent rule:

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

n

is even

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

= 1

= - 1 + 7 (- 1) + 2

Multiply and divide (left to right)

7 (- 1) : - 7

7 (- 1)

Apply rule

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

7 (- 1) = - 7 \cdot 1 = - 7

= - 7

= - 1 - 7 + 2

Add and subtract (left to right)

- 1 - 7 + 2 : - 6

- 1 - 7 + 2

- 1 - 7 = - 8

= - 8 + 2

- 8 + 2 = - 6

= - 6

= - 6

4 + 6 \cdot (- 2)

(36 \div 9) + (3 \div 4) + 2

(1/4 + 2/3) \times 1/2

- 3 {- (4 - 8) + 18 - 3 (5 - 9)}

10 (5)^{2}