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 Trinomial Addition

Connect the dot for an answer to the dot for the previous answer. Simplify each expression.

1.)   (2x2 + 3x - 1) + (-4x2 - 5x + 3) 2.)   (-3x2 +4x + 3) + (5x2 + 2x - 1) 3.)   (5x + 6x2 - 3) + (4x2 + 5x + 4) 4.)   (3 + 2x + 5x2) + (-4 + 3x + x2) 5.)   (2x2 + 6) + ( -3x2 - 6) 6.)   (5x2 + 2x) + (-6x2 - 6 - 6x) 7.)   (4 - 2x - 6x2) + ( 3x2 - 7x + 1) 8.)   (10x2 - 2xy + y2) + ( -2x2 - 2 yx + 2y2) 9.)   (-2x2 + 4 - 5x) + ( -4 + 2x2 - 5x) 10.)   (3a2 + 2a - 6b) + (4a2 - 5a + 8b) 11.)   (5x2 - 6x + 5) + (-7x2 + 4x - 3)