1) -b²-4b+6b+24=0
-b(b-6)-4(b-6)=0
(-b-4)(b-6)=0
(b+4)(6-b)=0
2) 100c²-50c+6=0
2(50c²-25c+3)=0
2(50c²-15c-10c+3)=0
2(10c(5c-1)-3(5c-1))=0
2(10c-3)(5c-1)=0
3) 3x²-x-2=3x²+2x-3x-2= 3x(x-1)+2(x-1)= (x-1)(3x+2)
9x²-4= (3x-2)(3x+2)
(x-1)(3x+2)/(3x-2)(3x+2)= (x-1)/(3x-2)
1) -b²-4b+6b+24=0
-b(b-6)-4(b-6)=0
(-b-4)(b-6)=0
(b+4)(6-b)=0
2) 100c²-50c+6=0
2(50c²-25c+3)=0
2(50c²-15c-10c+3)=0
2(10c(5c-1)-3(5c-1))=0
2(10c-3)(5c-1)=0
3) 3x²-x-2=3x²+2x-3x-2= 3x(x-1)+2(x-1)= (x-1)(3x+2)
9x²-4= (3x-2)(3x+2)
(x-1)(3x+2)/(3x-2)(3x+2)= (x-1)/(3x-2)