What is 3(-8)^2+9(-8)-16 ?

The solution to 3(-8)^2+9(-8)-16 is 104

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3(-8)^2+9(-8)-16

3 (- 8)^{2} + 9 (- 8) - 16

104

Solution steps

3 (- 8)^{2} + 9 (- 8) - 16

Follow the PEMDAS order of operations

Calculate exponents

(- 8)^{2} : 64

(- 8)^{2}

Apply exponent rule:

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

n

is even

(- 8)^{2} = 8^{2} = 64

= 64

= 3 \cdot 64 + 9 (- 8) - 16

Multiply and divide (left to right)

3 \cdot 64 : 192

3 \cdot 64

3 \cdot 64 = 192

= 192

= 192 + 9 (- 8) - 16

Multiply and divide (left to right)

9 (- 8) : - 72

9 (- 8)

Apply rule

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

9 (- 8) = - 9 \cdot 8 = - 72

= - 72

= 192 - 72 - 16

Add and subtract (left to right)

192 - 72 - 16 : 104

192 - 72 - 16

192 - 72 = 120

= 120 - 16

120 - 16 = 104

= 104

= 104

20 - 12 + 2 \times 3^{2} - 12 \div (2 + 2)

\frac{1}{2} (2) - 2

8 (2)^{3} + 2 (2) - 10

(- 15) \div (- 3) + 5

(2)^{2} - (2) - 6