What is -7^2+2(2-6)-17 ?

The solution to -7^2+2(2-6)-17 is -74

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-7^2+2(2-6)-17

- 7^{2} + 2 (2 - 6) - 17

- 74

Solution steps

- 7^{2} + 2 (2 - 6) - 17

Follow the PEMDAS order of operations

Calculate within parentheses

(2 - 6) : - 4

2 - 6

2 - 6 = - 4

= - 4

= - 7^{2} + 2 (- 4) - 17

Calculate exponents

7^{2} : 49

7^{2}

7^{2} = 49

= 49

= - 49 + 2 (- 4) - 17

Multiply and divide (left to right)

2 (- 4) : - 8

2 (- 4)

Apply rule

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

2 (- 4) = - 2 \cdot 4 = - 8

= - 8

= - 49 - 8 - 17

Add and subtract (left to right)

- 49 - 8 - 17 : - 74

- 49 - 8 - 17

- 49 - 8 = - 57

= - 57 - 17

- 57 - 17 = - 74

= - 74

= - 74

2.1

2 (- 3)^{2} - 5

\frac{180}{4}

144 + 25

12, 9