What is (-10)^2-4*4*5 ?

The solution to (-10)^2-4*4*5 is 20

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(-10)^2-445

(- 10)^{2} - 4 \cdot 4 \cdot 5

20

Solution steps

(- 10)^{2} - 4 \cdot 4 \cdot 5

Follow the PEMDAS order of operations

Calculate exponents

(- 10)^{2} : 100

(- 10)^{2}

Apply exponent rule:

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

n

is even

(- 10)^{2} = 1 0^{2} = 100

= 100

= 100 - 4 \cdot 4 \cdot 5

Multiply and divide (left to right)

4 \cdot 4 \cdot 5 : 80

4 \cdot 4 \cdot 5

4 \cdot 4 = 16

= 16 \cdot 5

16 \cdot 5 = 80

= 80

= 100 - 80

Add and subtract (left to right)

100 - 80 : 20

100 - 80

100 - 80 = 20

= 20

= 20

23 + (- 3) (4)

3 (3)^{2} - 24 (3) + 36

- 4 (3) - 4

12 + (- 3) - 18 + (- 4)

- 4 (3) + 3