Mathematics
Evaluate:
(3x2 + 5y2) (3x2 - 5y2)
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Answer
(3x2 + 5y2) (3x2 - 5y2)
Using the formula
[∵ (x + y)(x - y) = x2 - y2]
= (3x2)2 - (5y2)2
= 9x4 - 25y4
Hence, (3x2 + 5y2) (3x2 - 5y2) = 9x4 - 25y4
Answered By
3 Likes
Evaluate:
(3x2 + 5y2) (3x2 - 5y2)
5 Likes
(3x2 + 5y2) (3x2 - 5y2)
Using the formula
[∵ (x + y)(x - y) = x2 - y2]
= (3x2)2 - (5y2)2
= 9x4 - 25y4
Hence, (3x2 + 5y2) (3x2 - 5y2) = 9x4 - 25y4
Answered By
3 Likes