8. Transform both sides of each equation to determine which is a polynomial
identity.
(A) (c+d)3 = c - d + cd(c+d)
(B) (c + d)3 = c + d + 3cd(c + d)
(C) (c + d)3 = c + d + cd(c-d)
(D) (c+d) = c - d - 3cdíc - d)
9.
One factor of 3 + 4.x2 - 110 - 30 = 0 is x + 2. Find the remaining factors.
(A) I -5,2 +3
(B) x-3, x + 5
(C) I-6,2 +5
(D) X-5, x + 6
10.
Write the expression x4 + 5x2 - 8 in quadratic form, if possible.
(A) (2%)2 + 5(x-)-8
(B) (22) - 5(x)-8
(C) (24)2 + 5(x4) - 8
(D) not possible
1126
American School-Lansing, IL