Question

find the solution for the following equation 3x²-x-4=0

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Answer 1

Answer:

- 1 and 4/3

Step-by-step explanation:

3x² - x - 4 = 0

=> 3x² - 4x + 3x - 4 = 0

=> x( 3x - 4 ) + 1( 3x - 4 ) = 0

=> ( x + 1 )( 3x - 4 ) = 0

=> x + 1 = 0 or 3x - 4 = 0

=> x = - 1 or 3x = 4

=> x = - 1 or x = 4/3

Hence - 1 and 4/3 are the solutions

Answer 2

Answer:

3x²-x-4=0

Let's factories this

3x²-4x+3x-4

x(3x-4)+1(3x-4)

(3x-4)(x+1)

3x-4=0

x=4/3

x+1=0

x=-1

I have found the value of x. I think there is no problem in the above.