Question

X(x+y)-y(x-y) если x=-4 y=-515 балов​

Answer 1

Ответ:

41

Пошаговое объяснение:

раскрываем скобки получаем x^2+xy-xy+y^2= x^2+y^2=16+25=41

Answer 2

Ответ:

нам надо раскрыть скобки

Answer 3

To evaluate the expression X(x+y) - y(x-y) when x = -4 and y = -515, let's substitute the given values into the expression:

X(x+y) - y(x-y)

Substituting x = -4 and y = -515:

X((-4) + (-515)) - (-515)((-4) - (-515))

Simplifying inside the parentheses:

X(-519) - (-515)(-4 + 515)

Further simplifying:

-519X - (-515)(511)

Multiplying the terms:

-519X + 263165

Since the value of X is not provided, the expression cannot be further simplified or evaluated without knowing the value of X.