What is (0.99^2-1)/(0.99-1) ?

The solution to (0.99^2-1)/(0.99-1) is 1.99

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simplify (0.99^2-1)/(0.99-1)

simplify

\frac{0.9 9 ^{2} - 1}{0.99 - 1}

1.99

Solution steps

\frac{0.9 9 ^{2} - 1}{0.99 - 1}

Factor

0.9 9^{2} - 1 : (0.99 + 1) (0.99 - 1)

= \frac{( 0.99 + 1 ) ( 0.99 - 1 )}{0.99 - 1}

\frac{( 0.99 + 1 ) ( 0.99 - 1 )}{0.99 - 1} = \frac{1.99 ( - 0.01 )}{- 0.01}

= \frac{1.99 ( - 0.01 )}{- 0.01}

Cancel the common factor:

- 0.01

= 1.99

12 z^{2} - 4 z - 8

\frac{2}{5} - 3

- 8 x - 3 + (- 7) x^{2} + 2 x + 4

\frac{9}{2} + \frac{3}{2}

32 x^{5} - 2 x y^{8}