Find x,if xsquare+x=xcube-x

Asked by vikasg13.hardware | 19th Jun, 2017, 02:54: PM

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 | 19th Jun, 2017, 04:04: PM