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Questions and Answers
What is the expansion of $(2x + 3)^3$?
What is the expansion of $(2x + 3)^3$?
- $8x^3 + 12x^2 + 12x + 27$
- $8x^3 + 36x^2 + 54x + 81$
- $8x^3 + 36x^2 + 54x + 27$ (correct)
- $8x^3 + 12x^2 + 12x + 9$
What is the expansion of $(5a - 2b)^3$?
What is the expansion of $(5a - 2b)^3$?
- $125a^3 - 30a^2b - 30ab^2 - 8b^3$
- $125a^3 - 30a^2b + 30ab^2 - 8b^3$
- $125a^3 - 150a^2b - 60ab^2 - 8b^3$
- $125a^3 - 150a^2b + 60ab^2 - 8b^3$ (correct)
What is the expansion of $(m - n)^3$?
What is the expansion of $(m - n)^3$?
- $m^3 - 3m^2n + 3mn^2 - n^3$ (correct)
- $m^3 + 3m^2n - 3mn^2 - n^3$
- $m^3 + 6m^2n - 6mn^2 - n^3$
- $m^3 - 6m^2n + 6mn^2 - n^3$
