The number of roots of two equation 2|x|2. -7|x| +6=0 is
a) 4 b)3 c)2 d)1
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Step-by-step explanation:
When x >= 0
equation becomes 2x↑2-7x+6 = 0
on solving its roots are 2 and 3/2
when x< 0
equation becomes 2x↑2+7x+6 = 0
on solving its roots are -2 and -3/2
Hence,Total no. of roots are 4.
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