Answer:
The answer is C
Step-by-step explanation:
Answer:
(-3+5)(1)=-3+5
Step-by-step explanation:
The multiplicative identity is 1.
The multiplicative identity property days that, if you multiply a real number by 1, that result is the same real number.
This is demonstrated in option B of the given alternatives, where we have:

The multiplication by did not change b the value.
1. Factor out 9a^2 from the expression
9a^2 x(9x+y) - 90bx - 10by
2. Factor out -10b from the expression
9a^2 x(9x+y) - 10b x(9x+y)
3. Factor out 9x + y from the expression
(9x+y)x(9a^2 - 10b)
Solution: (9x+y)x(9a^2 - 10b)