Question

(3+x)=​

Answer 1

по формуле сокращенного умножения, конкретнее, квадрата суммы двух выражений (а+с)²=а²+2ас+с² найдем

(3+х)²=3²+2*3*х+х²=9+6х+х²

Answer 2

The expression "(3+x)" is an algebraic expression, and it represents a value that depends on the value of the variable "x."

If you want to evaluate this expression, you would need to substitute a specific value for "x." For example, if you want to find the value of the expression when "x" is equal to 5, you would substitute 5 for "x" like this:

(3 + 5) = 8

So, when x = 5, the value of the expression "(3+x)" is 8. However, if you want to keep it as a simplified algebraic expression, it remains as "(3+x)" because it represents the sum of 3 and the variable "x."