If x4 + 2x3 + ax2 + bx + 9 is a perfect square where a and b are posit – McqOptions

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1.	If x4 + 2x3 + ax2 + bx + 9 is a perfect square where a and b are positive real numbers, then the value of a and b is?
A.	= 5, b = 6
B.	= 6, b = 7
C.	= 7, b = 7
D.	= 7, b = 8
Answer» C. = 7, b = 7

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