#12. The expression a2+10a+16 can be written in factored form as a+8a%C2%A0+%C2%A0k, where k represents a number. What is the value of k?
To factor the expression a^2 + 10a + 16, we need to find two numbers that multiply to 16 and add up to 10. These numbers are 2 and 8.
Therefore, the factored form of a^2 + 10a + 16 is (a + 2)(a + 8).
So, k = 2(8) = 16.
The value of k is 16.