What is 4(-2)^2-(-2)-3 ?

The solution to 4(-2)^2-(-2)-3 is 15

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4(-2)^2-(-2)-3

4 (- 2)^{2} - (- 2) - 3

15

Solution steps

4 (- 2)^{2} - (- 2) - 3

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) - 3

Multiply and divide (left to right)

4 \cdot 4 : 16

4 \cdot 4

4 \cdot 4 = 16

= 16

= 16 - (- 2) - 3

Add and subtract (left to right)

16 - (- 2) - 3 : 15

16 - (- 2) - 3

Apply rule

- (- a) = + a

- (- 2) = + 2

= 16 + 2 - 3

16 + 2 = 18

= 18 - 3

18 - 3 = 15

= 15

= 15

(- 1)^{2} - 2 (- 1) - 8

12 \div 6 \times 2 \div 2^{2}

24 - 18 \div 3 + 2

2 \div 3^{2}

\frac{- 300}{- 50 \times 2}