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Simplify the following expression completely.

(x^(2)-15 x+56)/(x^(2)+2x-63)
Answer:

Simplify the following expression completely.\newlinex215x+56x2+2x63 \frac{x^{2}-15 x+56}{x^{2}+2 x-63} \newlineAnswer:

Full solution

Q. Simplify the following expression completely.\newlinex215x+56x2+2x63 \frac{x^{2}-15 x+56}{x^{2}+2 x-63} \newlineAnswer:
  1. Factor Numerator: Factor the numerator x215x+56x^2 - 15x + 56. To factor the quadratic expression, we need to find two numbers that multiply to 5656 and add up to 15-15. These numbers are 7-7 and 8-8. So, x215x+56x^2 - 15x + 56 can be factored as (x7)(x8)(x - 7)(x - 8).
  2. Factor Denominator: Factor the denominator x2+2x63x^2 + 2x - 63. Similarly, we need to find two numbers that multiply to 63-63 and add up to 22. These numbers are 99 and 7-7. So, x2+2x63x^2 + 2x - 63 can be factored as (x+9)(x7)(x + 9)(x - 7).
  3. Simplify Expression: Simplify the expression by canceling out the common factors.\newlineWe have (x7)(x8)(x - 7)(x - 8) in the numerator and (x+9)(x7)(x + 9)(x - 7) in the denominator. The common factor (x7)(x - 7) can be canceled out from both the numerator and the denominator.\newlineThe simplified expression is x8x+9\frac{x - 8}{x + 9}.

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