Question

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

Answer 1

Hello!

Here is the answer for your question!

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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Hope this helped you with your doubt :)    

Answer 2

Answer:

0

Step-by-step explanation:

2*-3^2= 18

5*-3-3=-18

18-18=0