Q. Use the Binomial Theorem to complete the expansion of (x+2)4. x4+8x3+24x2+32x+
Identify values of a, b, n: Identify the values of a, b, n from the expression (x+2)4. Here, a=x, b=2, and n=4.
Recognize pattern of binomial expansion: Recognize the pattern of the binomial expansion to determine the index of the missing term. The given expansion is x4+8x3+24x2+32x+____. The missing term is the constant term, which corresponds to r=4 in the binomial expansion.
Use binomial coefficient formula: Use the binomial coefficient formula to find the missing term. The general term in a binomial expansion is given by (rn)⋅an−r⋅br. For the missing term, we have (44)⋅x4−4⋅24.
Calculate binomial coefficient: Calculate the binomial coefficient (44), which is equal to 1 because any number choose itself is 1.
Simplify expression for missing term: Simplify the expression for the missing term. We have 1×x(4−4)×24, which simplifies to 1×x0×16, since x0 is 1.
Calculate value of missing term: Calculate the value of the missing term. The expression simplifies to 1×1×16, which equals 16.