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Simplify \(\frac{x^2 - y^2}{2x^2 + xy - y^2}\)

Mathematics
JAMB 1987

Simplify \(\frac{x^2 - y^2}{2x^2 + xy - y^2}\)

  • A. \(\frac{x + y}{2x + y}\)
  • B. \(\frac{x + y}{2x - y}\)
  • C. \(\frac{x - y}{2x - y}\)
  • D. \(\frac{x - y}{2x + y}\)
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Correct Answer: Option C
Explanation

\(\frac{x^{2} - y^{2}}{2x^{2} + xy - y^{2}}\)

\(2x^{2} + xy - y^{2} = 2x^{2} - xy + 2xy - y^{2}\)

= \(x(2x - y) + y(2x - y) \)

= \((x + y)(2x - y)\)

\(\frac{x^{2} - y^{2}}{2x^{2} + xy - y^{2}} = \frac{(x + y)(x - y)}{(x + y)(2x - y)}\)

= \(\frac{x - y}{2x - y}\)


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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free