Question

(9-4)(y+3)+(y+1)²-(7-y)(7+1)=​

Answer 1

Ответ:

y²+15y-40

Пошаговое объяснение:

сначала надо раскрыть скобки,потом привести подобные члены и вычислить

Answer 2

(9-4)(y+3) + (y+1)² - (7-y)(7+1)

First, we can simplify the expression within the parentheses: (9-4) = 5 (y+3) = y+3 (y+1)² = (y+1)(y+1) (7-y) = 7-y

Now we can substitute these simplified expressions back into the original equation: 5(y+3) + (y+1)(y+1) - (7-y)(7+1)

Next, we can distribute and simplify: 5y + 15 + y² + 2y + 1 - (49 + 7y - 7y - y²)

Now, combine like terms: 5y + 15 + y² + 2y + 1 - 49 - y²

Finally, combine all the terms together: y² - y² + 5y + 2y + 15 + 1 - 49 7y + 16 - 49 7y - 33

So the final answer is 7y - 33.