SOLUTION: If the difference between two numbers is 6, and the difference of their squares is 180, what is the sum of the numbers?
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Question 907836
:
If the difference between two numbers is 6, and the difference of their squares is 180, what is the sum of the numbers?
Found 2 solutions by
ewatrrr, MathLover1
:
Answer by
ewatrrr(24785)
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x the smaller number
(x+6)^2 - x^2 = 180
12x + 36 = 180
12x = 144
x = 12, the smaller number. Larger is 18
and..
324-144 = 180
Answer by
MathLover1(20850)
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put this solution on YOUR website!
let's numbers be
and
If the difference between two numbers is
,we have
......eq.1
and if the difference of their squares is
,
.............eq.2
you got system to solve:
......eq.1
.............eq.2
_________________________________
......eq.1...solve for
......substitute in eq.2
.............eq.2...solve for
now find
check:
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