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Simplify the expression completely if possible.

(x^(2)-16)/(x^(2)+5x+4)
Answer:

Simplify the expression completely if possible.\newlinex216x2+5x+4 \frac{x^{2}-16}{x^{2}+5 x+4} \newlineAnswer:

Full solution

Q. Simplify the expression completely if possible.\newlinex216x2+5x+4 \frac{x^{2}-16}{x^{2}+5 x+4} \newlineAnswer:
  1. Factorize Numerator and Denominator: Factor the numerator and denominator if possible.\newlineThe numerator x216x^2 - 16 is a difference of squares and can be factored into (x+4)(x4)(x + 4)(x - 4).\newlineThe denominator x2+5x+4x^2 + 5x + 4 can be factored by finding two numbers that multiply to 44 and add to 55. These numbers are 11 and 44.\newlineSo, the denominator factors into (x+1)(x+4)(x + 1)(x + 4).
  2. Write Expression with Factors: Write the expression with the factors.\newlineThe factored form of the expression is:\newline(x+4)(x4)(x+1)(x+4)\frac{(x + 4)(x - 4)}{(x + 1)(x + 4)}
  3. Cancel Common Factors: Cancel out the common factors.\newlineThe (x+4)(x + 4) term is present in both the numerator and the denominator, so they cancel each other out.\newlineThis leaves us with:\newlinex4x+1\frac{x - 4}{x + 1}
  4. Check Further Simplification: Check if further simplification is possible.\newlineThe expression (x4)/(x+1)(x - 4)/(x + 1) cannot be simplified further as there are no common factors left.

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