Let y² – 2y + 1 = x and . The value of equals ________. (Give the answer up to three decimal places)
Correct Answer
Solution & Step-by-step Explanation
⇒ x = (5 - y)²
⇒ y² – 2y + 1 = (5 – y)²
⇒ y² – 2y + 1 = 25 + y² – 10y
⇒ 8y = 24 ⇒ y = 3
x = (5 - y)² = (5 - 3)² = 4
x + √y = 4 + √3 = 5.732