Question

Factorise: 2 2 49 a + 70ab + 25b

Answer 1

Answer:

49a² + 70ab + 25b²

[(a+b)² = a²+2ab+b²]

= (7a)² + 2(7ax5b) + (5b)²

=(7a+5b)² = (7a+5b)(7a+5b)

Step-by-step explanation:

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Answer 2

Answer:

Answer:

The factors of is (7a+5b)and (7a+5b)

Solution:

Given  ,

and

On expanding the equation we get,

70ab can be written as

Therefore,

It is in the form of

Here, a is 7a and b is 5b

On substituting the values we get,

or

Hence, the factors are (7a+5b)and (7a+5b).

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