Penyelesaian dari (2×+5)(×-6)=x(2×+3)

Posted on

Penyelesaian dari (2×+5)(×-6)=x(2×+3)

(2x + 5)(x – 6) = x(2x + 3)

2x² – 12x + 5x – 30 = 2x² + 3x

2x² – 12x + 5x – 30 = 2x² + 3x

2x² – 7x – 30 – 2x² – 3x = 0

– 10x – 30 = 0

– 10x = 30

x = -3

(2x + 5)(x – 6) = x(2x + 3)

2x² – 12x + 5x – 30 = 2x² + 3x

2x² – 2x² – 12x + 5x – 3x = 30

-12x + 5x – 3x = 30

-7x – 3x = 30

-10x = 30

x = 30/-10

x = -3