Question

31) Factories the following expressions.
1) 25m2 + 30m +9
2) 49x2 - 36​

Answer 1

Answer:

1) 25m² + 30m + 9

= (5m)² + 2× 5m× 3 + 3²

= (5m+ 3)²

= (5m+ 3)(5m+ 3) { Since a²+ 2ab + b² = (a+b) ²

2) 49x² - 36

= (7x)² - 6²

= (7x-6) (7x+6) { a²-b² = (a-b) (a+b) }

Answer 2

Answer:

1) 63sq.m2

2) 62

Explanation:

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