Question

49a² + 70 ab + 25b² factorise

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Answer 1

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Answer 2

Answer:

(7a+5b)^2

Explanation:

(7a)^2+2*5b*7a +(5b)^2

since it is in the form of (a+b)^2 = a^2+2ab+b^2

therefore (7a)^2+2*5b*7a +(5b)^2 = (7a+5b)^2