How do you evaluate \frac { 2} { x } - \frac { 5} { 2x + 1}?
2 Answers
Jan 23, 2018
Explanation:
to find a common denominator, both denominators must be multiplied together.
this gives:
after expanding brackets:
so the final fraction is:
Jan 23, 2018
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Explanation:
- Multiply the numerator and the denominator of
2/x by 2x+1 and5/(2x+1) by x - Subtract the numerators of each fraction but keep the denominator
2x^2+x