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secondary 2 | Maths
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I don’t understand why must you reorder...pls explain... ty!
Date Posted: 3 years ago
Views: 496
Remember a²-b²= (a+b)(a-b) ?
-9n²+49m²
= 49m² - 9n²
= (7m)² - (3n)²
= (7m+3n)(7m-3n)
-9n²+49m²
= 49m² - 9n²
= (7m)² - (3n)²
= (7m+3n)(7m-3n)
Oh is it compulsory to rewrite
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