SOLUTION: find two numbers whose sum is 20 and the difference of their square is 80

SOLUTION: find two numbers whose sum is 20 and the difference of their square is 80

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Question 371842: find two numbers whose sum is 20 and the difference of their square is 80
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
.
.
I'm assuming you mean the difference of their squares.
2.
From eq. 1,

Substitute into eq. 2,

Then from eq. 1,

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