6x^+7x-3=0 find the equation
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if the eq. is 6x^2 + 7x - 3 = 0
then
6x^2 + 9x - 2x - 3 = 0
3x ( 2x + 3 ) -1 ( 2x + 3) = 0
(2x + 3) , ( 3x - 1 ) = 0
x = -3/2 , x = 1/3
then
6x^2 + 9x - 2x - 3 = 0
3x ( 2x + 3 ) -1 ( 2x + 3) = 0
(2x + 3) , ( 3x - 1 ) = 0
x = -3/2 , x = 1/3
Answered by
0
6x² + 7x - 3 = 0,
I am writing 7x as 9x - 2x,
Now it will look like,
6x² + 9x - 2x -3 = 0 [Taking 3x common in first two terms and -1 in last two terms ]
=> 3x(2x+3)-1(2x+3) [ Taking 2x+3 common]
=> (2x+3)(3x-1) = 0
=> x = -3/2 or 1/3,
But as it is a Quadratic , Both are zero's of polynomial,
Also the shortest method to solve this is Apply this formula,
Hope you understand,
Have a great day !!
I am writing 7x as 9x - 2x,
Now it will look like,
6x² + 9x - 2x -3 = 0 [Taking 3x common in first two terms and -1 in last two terms ]
=> 3x(2x+3)-1(2x+3) [ Taking 2x+3 common]
=> (2x+3)(3x-1) = 0
=> x = -3/2 or 1/3,
But as it is a Quadratic , Both are zero's of polynomial,
Also the shortest method to solve this is Apply this formula,
Hope you understand,
Have a great day !!
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