Question

Expand : (by using formula) (a+1/2)^3
and tell me formula after answer​

Answer 1

Answer:

a cube + 3a square 1/2+ 3 a 1/2 square + 1/2 cube

you can simplify further

formula for this is

a cube + 3a square b+ 3ab square + b cube

Answer 2

Step-by-step explanation:

${a}^{3 } + 3 {a}^{2} \times \frac{1}{2} + 3 \times \frac{1}{4} \times a + \frac{1}{8}$

=

${a}^{3} + \frac{3}{2} {a}^{2} + \frac{3}{4} a + \frac{1}{8}$