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Mathematics
Adalyn
4 December, 03:14
The solution set of 3x^2=7-4x
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Leilani Roach
4 December, 04:00
0
x = 1 or x = - 7/3
Step-by-step explanation:
Solve for x over the real numbers:
3 x^2 = 7 - 4 x
Subtract 7 - 4 x from both sides:
3 x^2 + 4 x - 7 = 0
The left hand side factors into a product with two terms:
(x - 1) (3 x + 7) = 0
Split into two equations:
x - 1 = 0 or 3 x + 7 = 0
Add 1 to both sides:
x = 1 or 3 x + 7 = 0
Subtract 7 from both sides:
x = 1 or 3 x = - 7
Divide both sides by 3:
Answer: x = 1 or x = - 7/3
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