What is the form of the Two Squares identity? A. (a? + b2)(c2 + 2) = (ab-ca)? + (ac + body?
B. (a + b)(c +0) = (ac- bd)? + ( ad + bc)?
C. (a + b)(c2 - 02) - (ac+ body? - (ad + bc)?
O D. (2 - b)(c + 2) = (ac- body? - (ad + bc)?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241. a) 0 b) 1 c) 2 d) 1 2

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.