What is -3(4-5)^2-1 ?

The solution to -3(4-5)^2-1 is -4

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-3(4-5)^2-1

- 3 (4 - 5)^{2} - 1

- 4

Solution steps

- 3 (4 - 5)^{2} - 1

Follow the PEMDAS order of operations

Calculate within parentheses

(4 - 5) : - 1

= - 3 (- 1)^{2} - 1

Calculate exponents

(- 1)^{2} : 1

= - 3 \cdot 1 - 1

Multiply and divide (left to right)

- 3 \cdot 1 : - 3

= - 3 - 1

Add and subtract (left to right)

- 3 - 1 : - 4

= - 4

5^{2} - 8 (5) + 15

4 (5)^{4}

(- 2)^{2} + 6

4 (5)^{1}

3 (3)^{2} - 12