Question

answer this maths question pls​

Answer 1

Verify: (a+b)² = a² + 2ab + b²

a = 2

b = 4

substituting the values,

(2+4)² = (6)²

2² + 2(2)(4) + 4² = 36

4 + 16 + 16 = 36

4 + 32 = 36

LHS = RHS = 36

Hence verified.

a = 3

b = 1

substituting the values,

(3+1)² = (4)²

3² + 2(3)(1) + 1² = 16

9 + 6 + 1 = 16

15 + 1 = 16

LHS = RHS = 16

therefore verified.

Hope it helps!!

have a great day!

[I have attached an image above for solving it geometrically. Substitute the values in place of a and b]

The aim is to provide the identity figure wise.

let us take an square as the figure.

Divide the length into 2 parts, a and b respectively.

Divide the square into 2 squares and 2 rectangles respectively. The area of these figures summed will be the total area of the entire square.

Hence a² + ab + ab + b² = (a+b)²

Since it's a square, we have learnt that the area of a square is side × side = side².

Answer 2

36

Step-by-step explanation:

(a+b)²=a²+2ab+b²

(2+4)²=2²+2×2×4+4²

(2+4)²=4+16+16

(2+4)²=36