132) x² - 5x = 0
x(x - 5) = 0
или x₁ = 0 или x - 5 = 0
x₂ = 5
3) 6x² + x - 7 = 0
D = (1)² - 4 * 6 * (- 7) = 1 + 168 = 169 = 13²
4) 3x² - 48 = 0
x² - 16 = 0
x² = 16
x₁ = 4
x₂ = - 4
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132) x² - 5x = 0
x(x - 5) = 0
или x₁ = 0 или x - 5 = 0
x₂ = 5
3) 6x² + x - 7 = 0
D = (1)² - 4 * 6 * (- 7) = 1 + 168 = 169 = 13²
4) 3x² - 48 = 0
x² - 16 = 0
x² = 16
x₁ = 4
x₂ = - 4