What is (3^x+3^{-x}-2)/(x^2) ?

The solution to (3^x+3^{-x}-2)/(x^2) is (9^x+1-2*3^x)/(3^xx^2)

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simplify (3^x+3^{-x}-2)/(x^2)

simplify

\frac{3 ^{x} + 3 ^{- x} - 2}{x ^{2}}

\frac{9 ^{x} + 1 - 2 \cdot 3 ^{x}}{3 ^{x} x ^{2}}

Solution steps

\frac{3 ^{x} + 3 ^{- x} - 2}{x ^{2}}

Simplify

3^{x} + 3^{- x} - 2 : \frac{9 ^{x} + 1 - 2 \cdot 3 ^{x}}{3 ^{x}}

= \frac{\frac{9 ^{x} + 1 - 2 \cdot 3 ^{x}}{3 ^{x}}}{x ^{2}}

Apply the fraction rule:

\frac{\frac{a}{b}}{c} = \frac{a}{b \cdot c}

= \frac{9 ^{x} + 1 - 2 \cdot 3 ^{x}}{3 ^{x} x ^{2}}

169 m^{12} - 100 n^{6}

(3 x^{2} + 7 x^{4}) \cdot (5 x^{1} - 7 + 8 x^{4} + 9)

(10 - 2 x)^{3}

729 + (x - 2)^{3}

8 n^{3} - 27 m^{3}

What is (3^x+3^{-x}-2)/(x^2) ?
The solution to (3^x+3^{-x}-2)/(x^2) is (9^x+1-2*3^x)/(3^xx^2)