Determine whether -3 is a root of

the equation 3x^+5x-8=0​

2 thoughts on “Determine whether -3 is a root of <br /><br />the equation 3x^+5x-8=0​”

1. Answer:

   [tex]3( 3){}^{ – 3} + 5( – 3) – 8 = 0 \\ 3 \times – 27 + ( – 15) – 8 = 0 \\ – 81 – 15 – 8 = 0 \\ – 96 – 8 = 0 \\ – 104 = 0 \\ 104[/tex]

   Step-by-step explanation:

   okk

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2. Answer:

   Putting the value of x in the equation

   3(-3)^2+5(-3)-8=0

   3(9) -15 -8 = 0

   27- 23=0

   -3 is not a factor of given eq.

   because the answer is not equal to zero

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