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weeeeeb [17]
3 years ago
9

Please solve and explain. Photo attached

Mathematics
1 answer:
ss7ja [257]3 years ago
7 0

$\frac{(x+1)(x-3)}{x^{2}}

Solution:

Given expression:

$\frac{\frac{36}{x^{2}}+\frac{36}{x}}{\frac{36}{x-3}}

To solve this expression:

$\frac{\frac{36}{x^{2}}+\frac{36}{x}}{\frac{36}{x-3}}

Apply the fraction rule: $\frac{a}{\frac{b}{c}}=\frac{a \cdot c}{b}

      $=\frac{\left(\frac{36}{x^{2}}+\frac{36}{x}\right)(x-3)}{36}

Let us solve \frac{36}{x^{2}}+\frac{36}{x}.

Least common multiple of x^{2}, x is x^{2}.

Make the denominator same based on the LCM.

So that multiply and divide the 2nd term by x, we get

$\frac{36}{x^{2}}+\frac{36}{x}=\frac{36}{x^{2}}+\frac{36 x}{x^{2}}

              $=\frac{36+36 x}{x^{2}}

Now, multiply by (x - 3).

$\frac{36+36 x}{x^{2}}(x-3)= \frac{(36 x+36)(x-3)}{x^{2}}

$\frac{\left(\frac{36}{x^{2}}+\frac{36}{x}\right)(x-3)}{36}=\frac{\frac{(36 x+36)(x-3)}{x^{2}}}{36}

Apply the fraction rule: \frac{\frac{b}{c}}{a}=\frac{b}{c \cdot a}

                            $=\frac{(36x+36)(x-3)}{x^{2} \cdot 36}

                            $=\frac{36(x+1)(x-3)}{x^{2} \cdot 36}

Cancel the common factor 36.

                            $=\frac{(x+1)(x-3)}{x^{2}}

Hence the solution is \frac{(x+1)(x-3)}{x^{2}}.

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