Show that x= -3 is the solution of 2x square +5x-3 – InterviewSolution

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Show that x= -3 is the solution of 2x square +5x-3

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Question:- SHOW that x= -3 is the solution of 2x square +5x-3

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Answer:-

If -3 is the solution for the given equation, when x is substituted with -3 answer should be zero

Given equation, $2x^{2} + 5x - 3$

substituting value of x as -3

= $2(-3^{2})+5(-3)-3$

= $18-15-3$

= $18-18 = 0$

Hence, when x is substituted with -3 answer is zero

So, -3 is solution of $2x^{2} +5x-3$

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