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$\text{ (x+y=53) just put any x and y whose sum is 53 and you wil get the same answer as} 53^3$

$(x+y)^3=(x+y)(x+y)(x+y)=x^3 + 3x^2y + 3xy^2 + y^3$

Thanks CPhill and Guest !

$m=\frac{y_2-y_1}{x_2-x_1}$

why did you inverse it :)

Thanks Guest !

a+a+a=3a

570/38 = 15

Thanks CPhill and Melody !

yes 4 :)

original question: