4x2 + 6x - 2 = (x-1) 2

Question

Алгебра

Валентыч

11 августа, 06:39

4x2 + 6x - 2 = (x-1) 2

+2

Ответы (2)

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Кузена · Answer 1

4x^2 + 6x-2 = (x-1) ^2

4x^2+6x-2=x^2-2x+1

3x^2+8x-3=0

D1=16+9=25

x1 = (-4+5) / 3=1/3

x2 = (-4-5) / 3=-3

Ответ: - 3; 1/3

Рипсимия · Answer 2

4x^{2} + 6x - 2 = (x-1) ^{2}

4x^{2} + 6x - 2 = x^{2} - 2x + 1

4x^{2} + 6x - 2 - x^{2} + 2x - 1 = 0

3x^{2} + 8x - 3 = 0

D = 8^{2} - 4*3 * (-3) = 64 - (-36) = 100

x_{1,2} = / frac{-8 / frac{+}{-} 10}{2*3}

x_{1} = - 3

x_{2} = / frac{1}{3}

4x*2 + 6x - 2 = (x-1) * 2

4x2 + 6x - 2 = (x-1) 2