The equation 2x^2 - 62x + k = 0 has two real roots, one of which is 1 more than twice the other. Find the value of k.
The equation 2x^2 - 62x + k = 0 has two real roots, one of which is 1 more than twice the other. Find the value of k.
(2)(x2 – 31x + k/2) = 0
(2)(x – a)(x – b) = 0
a + b = 31
a = 2b + 1
a = 31 – b
2b + 1 = 31 – b
3b = 30
b = 10
a = 2b + 1
a = 20 + 1
a = 21
(2)(x – a)(x – b) = 0
(2)(x – 21)(x – 10) = 0
(2)(x2 – 31x + 210) = 0
2x2 – 62x + 420 = 0
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