Question

Solve the quadratic equation
(x + y) ² - 2 (x + y) = 15, xy = 6​

Answer 1

Answer:

The value of k should -1/2 to have real and equal roots. (ii)k2x2 – 2 (2k – 1)x + 4 = 0. Solution: Given,

Answer 2

Answer:

Equation:- (x + y)² - 2

(x + y) = 15 [Given]

xy = 6 [Given]

(15 + 6)² - 2

[(15)² + 2(15)(6) + (6)²] - 2

[225 + 180 + 36] - 2

441 - 2

439 Ans

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