Question

factorize 7a square - 35ab ​

Answer 1

Step-by-step explanation:

7a−5b)(49a

2

+35ab+25b

2

)

=(7a−5b)[(7a)

2

+7a×5b+(5b)

2

]

=(x−y)(x

2

+xy+y

2

), where x=7a,y=5b

=x

3

−y

3

............... Using, a

3

−b

3

=(a−b)(a

2

+ab+b

2

)

=343a

3

−125b

3