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

The solution to 4(-2)^2-(-2) is 18

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4(-2)^2-(-2)

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

18

Solution steps

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

Follow the PEMDAS order of operations

Calculate exponents

(- 2)^{2} : 4

(- 2)^{2}

Apply exponent rule:

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

n

is even

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

= 4

= 4 \cdot 4 - (- 2)

Multiply and divide (left to right)

4 \cdot 4 : 16

4 \cdot 4

4 \cdot 4 = 16

= 16

= 16 - (- 2)

Add and subtract (left to right)

16 - (- 2) : 18

16 - (- 2)

Apply rule

- (- a) = + a

- (- 2) = + 2

= 16 + 2

16 + 2 = 18

= 18

= 18

(1)^{2} - 5

\frac{1}{2} \cdot (- 40) - 7

- 2^{2} + 9

- 11 + [(- 10) - (- 8)]

4 - (- 5 + 2) - 15 \div (- 5) + 4 \times (- 2)