Question: . Andre multiplied the expression (2x - 4)(3x + 5). When he checked his answer, he discovered an error. {2x - 4){3x + 5) :

. Andre multiplied the expression (2x - 4)(3x + 5). When he checked his answer, he discovered an error. {2x - 4){3x + 5) : 2x(3x + 5) 4(3x + 5) : 528+ 10x 12x+ 2o : 6x2 2x + 20 Check: Let x = 4. Left Side Right Side [2x - 4)(3x + 5) 6x2 2x + 20 = [2(4) - 4][3(4) + 5] = 6(4)2 - 2(4) + 20 :(84)(12+5) :96s+2o : (4}(17) : 103 : 68 a) Explain how Andre knew that he had made an error. (1) b) Explain the error and how to correct it. (2) ANSWER %

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