Question 1 Report
Find the value of x if 2√x+2√ 2 x + 2 = 1x−2√ 1 x − 2
Answer Details
2√x+2 2 x + 2 = x - 12√ 1 2
x2–√ 2 (x - 2–√ 2 ) = x + 2–√ 2 (cross multiply)
x2–√ 2 - 2 = x + 2–√ 2
= x2–√ 2 - x
= 2 + 2–√ 2
x (2–√ 2 - 1) = 2 + 2–√ 2
= 2+2√2√−1×2√+12√+1 2 + 2 2 − 1 × 2 + 1 2 + 1
x = 22√+2+2+2√2−1 2 2 + 2 + 2 + 2 2 − 1
= 32–√ 2 + 4