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

The solution to 4(-5)^2-(-5) is 105

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4(-5)^2-(-5)

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

105

Solution steps

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

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

= 4 \cdot 25 - (- 5)

Multiply and divide (left to right)

4 \cdot 25 : 100

4 \cdot 25

4 \cdot 25 = 100

= 100

= 100 - (- 5)

Add and subtract (left to right)

100 - (- 5) : 105

100 - (- 5)

Apply rule

- (- a) = + a

- (- 5) = + 5

= 100 + 5

100 + 5 = 105

= 105

= 105

(6 + 4^{3}) \div 7

2^{2} \cdot 2 3^{2}

- 4^{2} + 3^{2}

\frac{1}{2} + (\frac{4}{2} + \frac{3}{6})

3 \cdot 2^{5} - 4 \cdot 2^{4} + 2 \cdot 2^{3} - 1