What is (-7\div 1)(-8\div 7) ?

The solution to (-7\div 1)(-8\div 7) is 8

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(-7\div 1)(-8\div 7)

(- 7 \div 1) (- 8 \div 7)

8

Solution steps

(- 7 \div 1) (- 8 \div 7)

Follow the PEMDAS order of operations

Calculate within parentheses

(- 7 \div 1) : - 7

- 7 \div 1

- 7 \div 1 = - 7

= - 7

= - 7 (- 8 \div 7)

Calculate within parentheses

(- 8 \div 7) : \frac{- 8}{7}

- 8 \div 7

- 8 \div 7 = \frac{- 8}{7}

= \frac{- 8}{7}

= - 7 \cdot \frac{- 8}{7}

Multiply and divide (left to right)

- 7 \cdot \frac{- 8}{7} : 8

- 7 \cdot \frac{- 8}{7}

Convert element to fraction:

7 = \frac{7}{1}

= - \frac{7}{1} \cdot \frac{- 8}{7}

Cross-cancel common factor:

7

= - \frac{- 8}{1}

Divide the numbers:

\frac{- 8}{1} = - 8

= - (- 8)

Apply rule:

- (- a) = a

- (- 8) = 8

= 8

= 8

3 - 2 + 5 + 3 + 2 + 7 + 1 - 2

4 (10)^{3}

4 (10)^{2}

(4 - 2)^{0}

4^{3} + 4^{2} - 4 - 9