Question

3b square2-9c square 2 in factorsation​

Answer 1

Answer:

I don't know

Step-by-step explanation:

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Answer 2

Answer:

Factorise:

a

2

b

2

−6abc+9c

2

(A) (ab-3abc) 2

(B) (b-3c)2

(C) (a-3c)2

(D) (ab-3c)2

Step-by-step explanation:

Correct option is

D

(ab−3c)

2

a

2

b

2

−6abc+9c

2

=(ab)

2

+2×ab×(−3c)+(−3c)

2

Using a

2

+b

2

−2ab=(a−b)

2

=(ab−3c)

2