Question

find the value of (3a square) 4​

Answer 1

Step-by-step explanation:

Correct option is

B

9a

2

−24ab+16b

2

Given, (3a−4b).

On squaring, we get, (3a−4b)

2

.

We know, (x+y)

2

=x

2

+y

2

+2xy.

Then,

(3a−4b)

2

=(3a)

2

−2(3a)(4b)+(4b)

2

=9a

2

−24ab+16b

2

.

Therefore, option B is correct.

Answer 2

Answer:

9a square - 24ab + 16b square

Step-by-step explanation:

On squaring, we get 3a-4b

We know,(x+y) square= X square+ Y square+ 2xy

then,

(3a-4b) square

=(3a) square-2(3a) (4b) + (4b) square

=9a square-24ab+16b square