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Title: Evaluate y: y = (3x2 - x - 1) - (5 - 2x - x2) for x = -3 Post by: ikrabbe on Nov 25, 2017 Evaluate y: y = (3x2 - x - 1) - (5 - 2x - x2) for x = -3
Title: Re: Evaluate y: y = (3x2 - x - 1) - (5 - 2x - x2) for x = -3 Post by: yacom on Nov 25, 2017 (3x2 - x - 1) - (5 - 2x - x2)
= [ 3(-3)2 - (-3) - 1 ] - [ 5 - 2(-3) - (-3)2 ] = (27 + 3 - 1) - (5 + 6 - 9) = (29) - (2) = 14.5 - 0.5 = 14.0 |