6x (2x+3) + 2 (4-3x) = 26. Решит задачу

6x (2x+3) + 2 (4-3x) = 26

6x (2x+3) + 2 (4-3x) - 26=0

2 (3x (2x+3) + 4-3x-13) = 0

2 (6x ²+6x-9) = 0

2*3 (2x²+2x-3) = 0

2x²+2x-3=0

x=-2+-√ (2²-4*2 * (-3)) / 2*2

x=-2+-√ (4+24) / 4

x=-2+-√28 / 4

x=-2+2√2 / 4

x=-2-2√2 / 4

x=-1+√7 / 2

x=-1-√7 / 2