Question

(7+X)^2 раскрыть скобки)

Answer 1

Объяснение:

(а+в)^2=а^2+2ав+в^2 по этой формуле решаем пример

(7+х)^2=49+14х+х^2

Answer 2

Ответ:49+14х+х^2

Объяснение:

Answer 3

To expand the expression (7+X)^2, you need to apply the distributive property, which states that (a + b)^2 = a^2 + 2ab + b^2. In this case, a is 7, and b is X. Let's proceed with the expansion:

(7 + X)^2 = (7 + X)(7 + X)

Using the distributive property:

= 7 * 7 + 7 * X + X * 7 + X * X

= 49 + 7X + 7X + X^2

Now combine like terms:

= 49 + 14X + X^2

So, the expanded form of (7 + X)^2 is 49 + 14X + X^2.