Question

a + b whole cube is equal to ​

Answer 1

Step-by-step explanation:

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

hey mate do you want explaination

( a + b ) × ( a + b ) × ( a + b )

Answer 2

Answer:

a²+2ab+b²

Step-by-step explanation:

area of square side²

(a+b)² nothing but area of square with side(a+b)

The square contain

2 square and 2 rectangles

area of square side(a+b)=area of 2 square + area of 2 rectangle

Let's add area parts of square to derive area of square(a+b)

a²+ab+ab+b²

a²+2ab+b²

(a+b)²=a²+2ab+b²