2 answers:
Answer:
Step-by-step explanation:
3x^2 - 4x - 2 = 0
<u>Solution:</u>
x = 2 + sqrt 10/3
x = 2 - sqrt 10/3
<u>Decimal: </u>
x = 1.72076.....
x = 0.38743.....
<u>Solve Quadratic equation:</u>
3x^2 - 4x - 2 = 0
<u>Use quadratic formula:</u>
a = 3
b = -4
c = -2
<u>Showing Work:</u>
x = -b +/- sqrt b^2 - 4ac/2a
x = -( -4) +/- sqrt (-4^2) - 4(3) ( -2)/ 2(3)
x = 4 +/- sqrt 40/6
<u>Ans: x = 2/3 + 1/3 sqrt 10 or x = 2/3 + -1/3 sqrt 10</u>
Hope that helps!!!!!! : ) -P-
<u>Answer</u>
1.72 or -0.387
<u>Explanation</u>
3x²-4x-2=0
3x²-4x = 2
x² - (4/3)x = 2/3
x² - (4/3)x + (2/3)² = 2/3 + 4/9
(x - 2/3)² = 10/9
x - 2/3 = √10/3 or x - 2/3 = -√10/3
x = √10/3 + 2/3 or x = -√10/3 + 2/3
= 1.72 or = -0.387
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