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CBSE Class 9 Answered

Find x,if xsquare+x=xcube-x
Asked by vikasg13.hardware | 19 Jun, 2017, 02:54: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight x squared plus straight x equals straight x cubed minus straight x rightwards double arrow straight x cubed minus straight x squared minus straight x minus straight x equals 0 rightwards double arrow straight x cubed minus straight x squared minus 2 straight x equals 0 rightwards double arrow straight x open parentheses straight x squared minus straight x minus 2 close parentheses equals 0 rightwards double arrow straight x open parentheses straight x squared minus 2 straight x plus straight x minus 2 close parentheses equals 0 rightwards double arrow straight x open square brackets straight x open parentheses straight x minus 2 close parentheses plus open parentheses straight x minus 2 close parentheses close square brackets equals 0 rightwards double arrow straight x open parentheses straight x minus 2 close parentheses open parentheses straight x plus 1 close parentheses equals 0 rightwards double arrow straight x equals 0 comma space straight x minus 2 equals 0 comma space straight x plus 1 minus 0 rightwards double arrow straight x equals 0 comma space straight x equals 2 comma space straight x equals negative 1 end style
Answered by Sneha shidid | 19 Jun, 2017, 04:04: PM

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