Solve the equation using the quadratic formula 3x^2 =2(2x+1)
2 answers:
3x² = 2(2x+1)
Expand the brackets
3x² = 4x + 2
Rearrange
3x² - 4x - 2 = 0
Quadratic formula is
(-b ± √(b² - 4ac)) / 2a
Where
a = 3
b = -4
c = -2
Therefore, putting these values in to the quadratic formula:
x = 15.487
or
x = -3.487
Round the answers how you will.
Step 1: Make equation equal to Zero
3x^2 = 4x + 2
3x^2 - 4x - 2
Step 2: use equation
a= 3 b = -4 c= -2
after plugging in answer should be
(2 + or - sqrt 10) / 3
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