Respuesta :
Let T = the twins' ages
Then, the older sister is of age 2 + T.
the product of the three siblings ages is T*T*(T+2)
the sum of their ages. (T + T + (T + 2))
Using those equations and your calculator, you can now calculate the age of the siblings.
I hope that helps you.
the product of the three siblings ages is T*T*(T+2)
the sum of their ages. (T + T + (T + 2))
Using those equations and your calculator, you can now calculate the age of the siblings.
I hope that helps you.
Age of twins = x
Age of older sister = x + 2
x * x * (x+2) = x + x + (x+2) + 4558
x² * (x+2) = 3x + 4560
x³ + 2x² = 3x + 4560
x³ + 2x² - 3x - 4560
I tried fiddling with the calculator and came up with 16 and 18.
16 * 16 * 18 = 4608
16 + 16 + 18 = 50
4608 - 50 = 4558
The twins' age is 16.
Age of older sister = x + 2
x * x * (x+2) = x + x + (x+2) + 4558
x² * (x+2) = 3x + 4560
x³ + 2x² = 3x + 4560
x³ + 2x² - 3x - 4560
I tried fiddling with the calculator and came up with 16 and 18.
16 * 16 * 18 = 4608
16 + 16 + 18 = 50
4608 - 50 = 4558
The twins' age is 16.