Find the difference. (4x2 + 3x + 2) - (2x2 + 2x + 1): (A) 2x2 + 5x + 3 (B) 2x2 + x + 1 (C) 2x2 - x - 1
(4x^2 + 3x + 2) - (2x^2 + 2x + 1) = 2x^2 + x + 1
Updated 3/5/2014 8:46:37 PM
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(4x^2 + 3x + 2) - (2x^2 + 2x + 1) = 2x^2 + x + 1
Confirmed by alfred123 [3/5/2014 9:08:54 PM]

Solve: 6(x - 2) + 3(x - 2) = 18: (A) x=22/9 (B) x=2 (C) x=4
Updated 3/5/2014 8:43:11 PM
6(x - 2) + 3(x - 2) = 18
6x - 12 + 3x - 6 = 18
9x = 18 + 12 + 6
x = 36/9 = 4
Confirmed by alfred123 [3/5/2014 8:43:27 PM]
Multiply: (3x - 6)(2x + 7): (A)6x2 + 9x - 42 (B)6x2 + x - 42 (C) 6x2 - 42
Updated 3/5/2014 8:44:51 PM
(3x - 6)(2x + 7) = 6x^2 + 21x - 12x - 42 = 6x^2 + 9x - 42
Confirmed by alfred123 [3/5/2014 9:09:04 PM]
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