Question

4x^2-x+1=x+3x^2
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Answer 1

4x² - x + 1 = x + 3x²
4x² - x + 1 - x - 3x² = 0
x² - 2x + 1 = 0

Fórmula de Bháskara

$\Delta = b^2 - 4ac\\ \\ \Delta = (-2)^2 - 4 .1 . 1\\ \\ \Delta = 4 - 4\\ \\ \Delta = 0\\ \\ \\ x = \dfrac{-b\pm\sqrt{\Delta}}{2a}\\ \\ x = \dfrac{2\pm\sqrt{0}}{2}\\ \\ x = \dfrac{2}{2}\\ \\ x=1$

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