Question

Expand using the formulae:         (6)

1. (+18)(−20)

2. (5+4)3

3. (41)3

4. (4−3)3

5. (197)3  

6. (4−5+3)2  

​

Answer 1

Answer:

$42122511..0 = > = = = \times 25112663 =$

dftt

Answer 2

1)-360

2) 729

3) 68,921

4) 1

5) 7,645,373

6) 4