Linear Quadratic Equation
Linear Quadratic Equation
a2 = 6a - 4, b2 = 6b – 4, what is the value of (2a+1)*(2b+1)
(a) 17 (b) 13
(c) 29 (d) 28
(e) 16
Linear Quadratic Equation
Solution:
a2 = 6a – 4
b2 = 6b – 4
a, b are roots of the equation x2 – 6x + 4 = 0
a + b = 6 ab = 4
(2a + 1)(2b + 1) = 4ab + 2(a + b) + 1
= 4 x 4 x 2 6 + 1
= 16 + 12 + 1
a2 = 6a - 4, b2 = 6b – 4, what is the value of (2a+1)*(2b+1)
Linear Quadratic Equation
Answer choice (C)
a2 = 6a - 4, b2 = 6b – 4, what is the value of (2a+1)*(2b+1)
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Linear Quadratic Equation - 16