(x+5)^2-x(x-10) при x- -1/20

Question

(x+5)^2-x(x-10) при x- -1/20

Comments

x = -1/20 ??

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да

Answer 1

(x+5)² - x(x - 10) = 
x² + 10x + 25 - x² + 10x =
20x + 25 = 
20 * (-1/20) + 25 = 
-1 + 25 = 24

Comments

спс