alleryCubing the binomial (x + 2) yields which polynomial?
Ax^3 + 6x^2 + 6x + 8
Bx^3 + 3x^2 + 6x + 8
Cx^3 + 6x^2 + 12x + 8
Dx^3 + 8x^2 + 12x + 8
Answer & Solution
Correct answer: C. x^3 + 6x^2 + 12x + 8
Expanding with y = 2 gives x^3 + 3(2)x^2 + 3(4)x + 8 = x^3 + 6x^2 + 12x + 8.
Keep practising Algebra: expansions
Browse all Algebra: expansions questions for ICSE Class 9, or explore more Mathematics topics.
Related questions
Match each binomial product with its expansion:Match each special conditional cubic identity with its result:Match each cubic identity with its algebraic expansion:Match each three-variable identity with its expanded polynomial:How many rectangular boxes are formed when a cube of side a + b is cut?Find the simplified expression for the cube of (x - 2).According to the binomial theorem, what does (x + y)^3 expand to?If a + b + c = 9 and ab + bc + ca = 23, find a^2 + b^2 + c^2.