the cost of (X -5) apples is rupees(x2-25).What is the cost of one apple

Answer: 5
explanation:
x -5 apples = x^2 - 25
1 apple = x
cross multiply:
x (x-5) = 1 (x^2 - 25)
x^2 - 5x = x^2 - 25
the "X^2" WILL CANCEL OUT
-5x = -25
x = -25/-5
x = 5
The cost of one apple is x + 5
Let the cost of one apple be y.
So, we have the following equation
y * (x - 5) = x^2 - 25
Express x^2 - 25 as a difference of two squares
y * (x - 5) = (x + 5)(x - 5)
Divide both sides by x - 5
y = x + 5
Hence, the cost of one apple is x + 5
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