Mathematics
Grade10
Easy
Question
Factor 16x2 – 81y2
- (4x – 9y)2
- (4x – 9y) (4x + 9y)
- (2x – 9y) (4x + 9y)
- (4x – 9y) (2x + 9y)
The correct answer is: (4x – 9y) (4x + 9y)
(4x)2 – (9y)2 = (4x – 9y) (4x + 9y)
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