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Fully simplify the expression below and write your answer as a single fraction.

(x^(4)-25x^(2))/(x^(2)+8x+15)*(x^(2)+2x-3)/(6x^(3)-36x^(2)+30 x)
Answer:

Fully simplify the expression below and write your answer as a single fraction.\newlinex425x2x2+8x+15x2+2x36x336x2+30x \frac{x^{4}-25 x^{2}}{x^{2}+8 x+15} \cdot \frac{x^{2}+2 x-3}{6 x^{3}-36 x^{2}+30 x} \newlineAnswer:

Full solution

Q. Fully simplify the expression below and write your answer as a single fraction.\newlinex425x2x2+8x+15x2+2x36x336x2+30x \frac{x^{4}-25 x^{2}}{x^{2}+8 x+15} \cdot \frac{x^{2}+2 x-3}{6 x^{3}-36 x^{2}+30 x} \newlineAnswer:
  1. Factor Numerator and Denominator: First, factor the numerator and the denominator of both fractions where possible.\newlineThe numerator of the first fraction, x425x2x^4 - 25x^2, can be factored as a difference of squares: (x252)(x2)=(x225)(x2)(x^2 - 5^2)(x^2) = (x^2 - 25)(x^2).\newlineThe denominator of the first fraction, x2+8x+15x^2 + 8x + 15, can be factored as (x+3)(x+5)(x + 3)(x + 5).\newlineThe numerator of the second fraction, x2+2x3x^2 + 2x - 3, can be factored as (x+3)(x1)(x + 3)(x - 1).\newlineThe denominator of the second fraction, 6x336x2+30x6x^3 - 36x^2 + 30x, can be factored by first taking out the common factor of 6x6x: 6x(x26x+5)6x(x^2 - 6x + 5), and then factoring the quadratic: 6x(x5)(x1)6x(x - 5)(x - 1).
  2. Write Factored Expression: Now, write the expression with the factored terms: (x225)(x2)(x+3)(x+5)×(x+3)(x1)6x(x5)(x1)\frac{(x^2 - 25)(x^2)}{(x + 3)(x + 5)} \times \frac{(x + 3)(x - 1)}{6x(x - 5)(x - 1)}.
  3. Cancel Common Factors: Next, cancel out the common factors from the numerator and the denominator across the two fractions.\newlineThe (x+3)(x + 3) terms cancel out, as do the (x1)(x - 1) terms. Also, x2x^2 can be canceled with one of the x's in 6x6x.\newlineThe expression now looks like this:\newline(x225)x(x+5)×16(x5)\frac{(x^2 - 25)x}{(x + 5)} \times \frac{1}{6(x - 5)}.
  4. Simplify Expression: Simplify the expression further by canceling out the (x5)(x - 5) terms: (x225)x6(x+5)\frac{(x^2 - 25)x}{6(x + 5)}.
  5. Write Single Fraction: Finally, write the simplified expression as a single fraction: (x325x)/(6x+30)(x^3 - 25x) / (6x + 30).
  6. Further Simplify Fraction: We can simplify the fraction further by factoring out an xx from the numerator and a 66 from the denominator: x(x225)6(x+5)\frac{x(x^2 - 25)}{6(x + 5)}.
  7. Final Answer: Now, we can see that the expression is fully simplified and cannot be reduced further.\newlineThe final answer is:\newlinex(x225)6(x+5)\frac{x(x^2 - 25)}{6(x + 5)}.

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