Question

(x² - x) = -½(x -3 + 3x²
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Answer 1

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Answer:

x²-x=-1/2(x-3+3x²)

2x²-2x=-x+3-3x²

2x²-2x+x-3+3x²

5x²-x-3=0

OK friend

Answer 2

Step-by-step explanation:

$(x {}^{2} - x) = \frac{1}{2} (x - 3 + 3x {}^{2} ) \\ 2(x {}^{2}-x) = 3x {}^{2} + x - 3 \\ 2x {}^{2} - 2x = 3x {}^{2} + x - 3 \\ 2x {}^{2} - 2x - 3 {x}^{2} - x + 3 = 0 \\ - x {}^{2} - 3x + 3 = 0 \\ {x}^{2} + 3x - 3 = 0 \\ </p><p>a = 1 \, \: b = 3 ,\: c = - 3 \\ D=b^2-4ac \ (Discriminat) \\ D=9-4(1×-3) \\ </p><p> =9+12 \\ </p><p> =21 \\ X=(-b+-√D)/2a \\ </p><p> X=(-3+-√21)/2</p><p>$

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