Correct Answer: Option A

Explanation

a2 - b2 = (\(\frac{2x}{1 - x}\))2 - (\(\frac{1 + x}{1 - x}\))2

= (\(\frac{2x}{1 - x} + \frac{1 + x}{1 - x}\))(\(\frac{2x}{1 - x} - \frac{1 + x}{1 - X}\))

= (\(\frac{3x + 1}{1 - x}\))(\(\frac{x - 1}{1 - x}\))

= \(\frac{3x + 1}{x - 1}\)

• I whant to know we're I supposed to be? Answer this

  1 Answers   ·   1 day ago
• can jss 3 students use this my school? Answer this

  1 Answers   ·   Mathematics   ·   2 weeks ago
• the bearing of ships A and B from a Port P are 225 and 116 respectively .ship A is 3.9km... Answer this

  3 Answers   ·   Mathematics   ·   5 years ago