What is (1-2)/((1)^2-4) ?

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

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(1-2)/((1)^2-4)

\frac{1 - 2}{( 1 ) ^{2} - 4}

\frac{1}{3}

Solution steps

\frac{1 - 2}{( 1 ) ^{2} - 4}

Solve

1 - 2 : - 1

1 - 2 = - 1

= - 1

Solve

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

Follow the PEMDAS order of operations

Calculate exponents

(1)^{2} : 1

(1)^{2}

(1)^{2} = 1

= 1

= 1 - 4

Add and subtract (left to right)

1 - 4 : - 3

1 - 4

1 - 4 = - 3

= - 3

= - 3

= \frac{- 1}{- 3}

Apply the fraction rule:

\frac{- a}{- b} = \frac{a}{b}

= \frac{1}{3}

20 - 3 \times 6 + 8

7 - 2 \cdot 5 + 7 \cdot 3 - 2 \cdot 4 - 3 \cdot 4

\frac{- 3 - 4}{2 - ( - 1 )}

3 - 5 \times 4 + 6

7 \times (- 3) + [2 + 3 \times (- 5)]