Question

(7b2-4b+2)-(5b2-3b+7)​

Answer 1

Ответ:

2б²-б-5

Объяснение:

(7б^2-4б+2)-(5б^2-3б+7)=

= 7б²-4б+2-5б²+3б-7=

=2б²-б-5

Answer 2

To simplify the expression (7b^2 - 4b + 2) - (5b^2 - 3b + 7), you can distribute the negative sign to each term inside the second set of parentheses and then combine like terms:

(7b^2 - 4b + 2) - (5b^2 - 3b + 7)

= 7b^2 - 4b + 2 - 5b^2 + 3b - 7

Now, let's combine like terms:

(7b^2 - 5b^2) + (-4b + 3b) + (2 - 7)

= 2b^2 - b - 5

So, the simplified expression is 2b^2 - b - 5.