Correct Answer: Option B

Explanation

x - y = 2 ...........(1)

x\(^2\) - y\(^2\) = 8 ........... (2)

x - 2 = y ............ (3)

Put y = x - 2 in (2)

x\(^2\) - (x - 2)\(^2\) = 8

x\(^2\) - (x\(^2\) - 4x + 4) = 8

x\(^2\) - x\(^2\) + 4x - 4 = 8

4x = 8 + 4 = 12

x = \(\frac{12}{4}\)

= 3

from (3), y = 3 - 2 = 1

therefore, x = 3, y = 1

There is an explanation video available below.

• What can i study with 155 score in science course? Answer this

  2 Answers   ·   Biology   ·   3 days ago
• Does WAEC give Calculator to student for there exam? Answer this

  3 Answers   ·   Mathematics   ·   4 days ago
• find the value of (16)^3/2 + log0.0001 + log325? Answer this

  13 Answers   ·   Mathematics   ·   10 years ago