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Show that x = -3 is a solution of equation 2x^2 + 5x - 3 = 0.

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Show that x = -3 is a solution of equation 2x2 + 5x - 3 = 0.

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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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