Word Problem # 18 from Test 4.1,2,3,4,5

C. Masney Math III Mr. Kirkland's Class

The Johnson twins were born 5 years after their older sister.

T+5=S T=Age of twins S=Age of older sister

This year the product of the three siblings ages is exactly 4450 more than the sum of their ages.

(T)(T)(T+5)=T+T+(T+5)+4450

T^3+5T^2=3T+5+4450

(T^3+5T^2)-(3T-4455)=(3T+4455)-(3T-4455)

T^3+5t^2-3T-4455=0

How old are the twins? 15 years old.

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