Q. 19
Mark the Correct alternative in the following:
The number of roots of the equation
is
A. 0
B. 1
C. 2
D. 3
Answer :
given
(x+2) (x-5) (x+4) = (x-2) (x-3) (x+6)
x3+4x2-5x2-20x+2x2+8x-10x-40 = x3+6x2-3x2-18x-2x2-12x+6x+36
x2-22x-40 = x2-24x+36
4x = 76
x = 19
hence the given equation has only one solution.
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