Question 11 [3 marks] (a) Expand to the first three terms of the expresion (y-2x)5. Simplify all coefficients. (2) (b) H
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Question 11 [3 marks] (a) Expand to the first three terms of the expresion (y-2x)5. Simplify all coefficients. (2) (b) H
Question 11 [3 marks] (a) Expand to the first three terms of the expresion (y-2x)5. Simplify all coefficients. (2) (b) Hence, find the coefficient of r³y in the expression (1+x+2x²)(y-2x)5. (1)