Question

5x-2+(2x-1)=(4x+1).(x-3)+12

Answer 1

5x-2+2x-1=4x²-12x+x-3+12

5x+2x+11x-4x²=-3+12+1+2

18x-4x²=12

-4x²+18x-12=0

-2x²+9x-6=0

x=-b+-√∆/2a

x=-b+-√b²-4ac/2a

x=-(9)+-√(9)²-4(-2)(-6)/2(-2)

x=-9+-√81-48/-4

x=-9+-√33/-4

x1=-9+√33/4

x2=-9-√33/4