9 mathematics. i'll report ur answer and ur acc if ur answer is nonsense or not related on the topic.
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9 mathematics. i'll report ur answer and ur acc if ur answer is nonsense or not related on the topic.
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Answer:
Let the middle child be x youngest child = x-1 Oldest child = x +1
(x - 1)^2 = 8(x + 1) + 4
x^2 - 2x + 1 = 8x +8+4
x^2 - 10x - 11-0
(x-11)*(x + 1) = 0
X = -1 makes no sense. How can a middle child be - 1 years old?
x = 11
The youngest child is 10
The middle child is 11
The oldest child is 12
Check
10^2 = 100
(8*12) + 4
96 + 4 = 100 So the results have been checked.
Step-by-step explanation:
Hope it helps Ps: I dont claim na galing tlga sakin tong sagot nato