BRIEF ANSWERS TO TEST 1 FOR COLLEGE ALGEBRA STUDENTS

• (x+1)(2y-3)(y+6)
• -8x^(27)y^9
• 30 ml of 80 percent solution, and 20 ml of 30 percent solution.
• x is in (-infinity,2) union (10/3,infinity)
• (10+3*square_root(2))/6 + [(-6+5*square_root(2))/6]*i
• length = square_root(17)+1, width = square_root(17)-1
• y = 9/4 or 3
• x is in ((13-square_root(45))/2, (13+square_root(45))/2)
• x is in (-infinity,1] union (3,4)