Q. 75.0( 2 Votes )

# Show that x = — 3 is a solution of 2x^{2} + 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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