1.

Let a,b,c be real numbers with a ≠ 0. Suppose a and 4a + 3b + 2c have the same sign. Then equation ax2 + bx + c = 0 cannot have both the roots in the interval.

Answer»

Let a,b,c be real numbers with a 0. Suppose a and 4a + 3b + 2c have the same sign. Then
equation ax2 + bx + c = 0 cannot have both the roots in the interval.




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