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Question: Solve 3x2 − 7x − 2 = 0.

Answer
x equals the quantity of negative 7 plus or minus square root 25 all over 6
x equals the quantity of 7 plus or minus square root 73 all over 6
x equals the quantity of negative 7 plus or minus square root 75 all over 6
x equals the quantity of negative 7 plus or minus square root 31 all over 6

User Arshiya
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2 Answers

5 votes
Hey there, Lets solve this problem together.


3x^2 - 7x - 2 = 0

Let the variables

a = 3,
b = -7,
c = -2


x = (-b (+-) sqrt b^2 - 4ac) / 2a x = -(-7) (+-) sqrt -7^2 - 4(3)(-2)) / 2(3) x = (7 (+-) sqrt (49 + 24) / 6 x = (7 (+-) sqrt 73) / 6
User KeyStroke
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8.5k points
5 votes
3x^2 - 7x - 2 = 0
a = 3, b = -7, c = -2

x = (-b (+-) sqrt b^2 - 4ac) / 2a
x = -(-7) (+-) sqrt -7^2 - 4(3)(-2)) / 2(3)
x = (7 (+-) sqrt (49 + 24) / 6
x = (7 (+-) sqrt 73) / 6...answer is B
User Dilantha
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7.1k points