What is the expanded form of (a + b)^2?

(a + b) × (a + b)

Step-by-step explanation:

(a + b)²

(a + b) × (a + b)

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry