Which of the equations are true identities? A. (a + b)(2a + 1) = a(2a + 2b + 1)
B. (n + 2) ^ 2 - n ^ 2 = 4(n + 1)

Choose 1
a. Only A
b. Only B
c. Both A and B
d. Neither A or B

What is the prime factorization of 195

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)