What is (-5)^2-8(-5)-6 ?

The solution to (-5)^2-8(-5)-6 is 59

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(-5)^2-8(-5)-6

(- 5)^{2} - 8 (- 5) - 6

59

Solution steps

(- 5)^{2} - 8 (- 5) - 6

Follow the PEMDAS order of operations

Calculate exponents

(- 5)^{2} : 25

(- 5)^{2}

Apply exponent rule:

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

n

is even

(- 5)^{2} = 5^{2} = 25

= 25

= 25 - 8 (- 5) - 6

Multiply and divide (left to right)

8 (- 5) : - 40

8 (- 5)

Apply rule

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

8 (- 5) = - 8 \cdot 5 = - 40

= - 40

= 25 - (- 40) - 6

Add and subtract (left to right)

25 - (- 40) - 6 : 59

25 - (- 40) - 6

Apply rule

- (- a) = + a

- (- 40) = + 40

= 25 + 40 - 6

25 + 40 = 65

= 65 - 6

65 - 6 = 59

= 59

= 59

2^{2} - 1

2 (- 2)^{2}

2^{8} - 10 - \frac{15}{3}

\frac{30}{360}

0.2