Question

64(2a-b)^2- 81b^2 factorise it​

Answer 1

Answer:

Expand the square

6

4

(

2

−

)

2

−

8

1

2

64\left(2a-b\right)^{2}-81b^{2}

64(2a−b)2−81b2

6

4

(

2

−

)

(

2

−

)

−

8

1

2

64(2a-b)(2a-b)-81b^{2}

64(2a−b)(2a−b)−81b2

2

Distribute

3

Distribute

4

Re-order terms so that constants are on the left

5

Distribute

6

Re-order terms so that constants are on the left

7

Combine exponents

8

Distribute

9

Combine like terms

10

Distribute

11

Combine like terms

Step-by-step explanation:

SOLVE IT THESE ARE THE STEPS