Mathematics, 02.07.2020 20:01 anniekwilbourne

The first three terms in the expansion of (1-2x)^2 (1+ax)^6,in ascending powers of x , are 1-x+bx^2.Find the values of the constants a and b

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The first three terms in the expansion of (1-2x)^2 (1+ax)^6,in ascending powers of x , are 1-x+bx^2....

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