Factorise 49a2 + 70ab + 25b2
Answers
Answered by
8
Answer:
(7a + 5b)2
Step-by-step explanation:
(7a)2 + 2 (7a)(5b) + (5b)2
it is in the form of (a+b)2
therefore it is (7a + 5b)2.
i hope it helps you ...
Answered by
32
49a² + 70ab + 25b²
a² + 2ab + b² = (a + b )²
(7a)² + 2 × 7a × 5b + (5b)² = (7a + 5b)²
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