Q. 75.0( 2 Votes )

Show that x = — 3 is a solution of 2x2 + 5x –3 = 0.

Answer :

Put x = –3 in the equation.


2(–3)2 + 5(–3) –3 = 0


18 – 15 –3


18 – 18


= 0


Therefore, x = –3 is the solution of the equation.


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