Question

18. Use Pascal's triangle to find the coefficients of the expanded polynomial (a + b)^3.

Answer 1

Answer:

Step-by-step explanation:

Hello, let's compute the first lines of the Pascal's triangle.

1

1 1

1 2 1

1 3 3 1

So for this question,

$(a+b)^3=a^3+3a^2b+3ab^2+b^3$

And then, the correct answer is A.

Thank you