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Simplify the following expression completely.

(x^(2)+15 x+56)/(x^(2)+3x-28)
Answer:

Simplify the following expression completely.\newlinex2+15x+56x2+3x28 \frac{x^{2}+15 x+56}{x^{2}+3 x-28} \newlineAnswer:

Full solution

Q. Simplify the following expression completely.\newlinex2+15x+56x2+3x28 \frac{x^{2}+15 x+56}{x^{2}+3 x-28} \newlineAnswer:
  1. Factor Numerator: Factor the numerator x2+15x+56x^2 + 15x + 56. To factor the quadratic expression, we need to find two numbers that multiply to 5656 and add up to 1515. These numbers are 77 and 88. So, x2+15x+56x^2 + 15x + 56 can be factored as (x+7)(x+8)(x + 7)(x + 8).
  2. Factor Denominator: Factor the denominator x2+3x28x^2 + 3x - 28. Similarly, we need to find two numbers that multiply to 28-28 and add up to 33. These numbers are 77 and 4-4. So, x2+3x28x^2 + 3x - 28 can be factored as (x+7)(x4)(x + 7)(x - 4).
  3. Simplify Expression: Simplify the expression by canceling out the common factors.\newlineThe factored form of the expression is (x+7)(x+8)(x+7)(x4)\frac{(x + 7)(x + 8)}{(x + 7)(x - 4)}.\newlineWe can cancel out the common factor (x+7)(x + 7) from the numerator and the denominator.\newlineThe simplified expression is x+8x4\frac{x + 8}{x - 4}.

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