Sagot :
Answer:
x=8
x+1=9
x+2=10
Step-by-step explanation:
x (first integer)
x+1 (2nd)
x+2 (3rd)
x(x+1)(x+2)=720
x³+3x²+2x=720
x³+3x²+2x+720=0
(x-8)(x²+11x+90)
x=8
checking:
x(x+1)(x+2)=720
8(9)(10)=720
72(10)=720
720=720
Answer:
x=8
x+1=9
x+2=10
Step-by-step explanation:
x (first integer)
x+1 (2nd)
x+2 (3rd)
x(x+1)(x+2)=720
x³+3x²+2x=720
x³+3x²+2x+720=0
(x-8)(x²+11x+90)
x=8
checking:
x(x+1)(x+2)=720
8(9)(10)=720
72(10)=720
720=720