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Simplify the following expression?
x^2-25/x^2+5x
3 Answers
- ?Lv 68 years agoFavorite Answer
Hello. The proper way to simplify this expression is the following:
♣ Apply the formula a² - b² = (a - b)(a + b) in the numerator.
♣ Factor out the x in the denominator.
♣ Finally, remove the (x + 5) in both places.
(x² - 25) / (x² + 5x) =
(x - 5)(x + 5) / x(x + 5) =
(x - 5) / x
Done! You now have the simplified expression. Hope that helped!
~Maths
- 8 years ago
x^2-25/x^2+5x
= [ (x-5)(x+5) ] / [ x(x+5) ] {apply difference of perfect squares rule on numerator, take x as a common factor out of denominator}
Now you have x+5 in both the numerator and denominator which cancel
=(x-5)/x or 1 - 5/x
- AdmireLv 78 years ago
No brackets and one is left second guessing your question.
Hopefully it is this (x^2-25)/(x^2+5x)
(x-5)(x+5)/x(x+5) = (x-5)/x
