1 a) x² - 36 = 0
x² = 36
x₁ = 6, x₂ = -6
1 б) 2x² = 3x
2x²- 3x = 0
x ( 2x - 3 ) =0
x₁ = 0
2x - 3 = 0
2x = 3
x₂ = 3/2 = 1.5
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2) (3x - 1 ) ( 2x + 3) = 3 (2x-1)
6x² + 9x - 2x - 3 = 6x - 3
6x² + x = 0
x (6x + 1) = 0
x₁ = 0
x₂ = - 1/6
3) - сложный, нет времени решать, уж извини.