If one of the roots of quadratic having rational coefficients is √7 – McqOptions

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1.	If one of the roots of quadratic having rational coefficients is √7 - 4, then the quadratic equation is:
A.	x2 - 2√7x - 9 = 0
B.	x2 - 8x + 9 = 0
C.	x2 + 8x + 9 = 0
D.	x2 - 2√7x + 9 = 0
Answer» B. x2 - 8x + 9 = 0

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