Q10 of 50 Page 9

Find the product 24x2(1-2x) and evaluate its value for x=3

24x2 (1 – 2x)


= 24x2 – 48x3


According to question,


When x = 3


= 24x2 – 48x3


= 24 (3)2 – 48 (3)3


= 24 (9) – 48 (27)


= 216 – 1296


= - 1080


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