Mathematics
Factorise the following:
4x2 - 25y2
Factorisation
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Answer
4x2 - 25y2 = (2x)2 - (5y)2.
Using identity,
a2 - b2 = (a + b)(a - b).
(2x)2 - (5y)2 = (2x + 5y)(2x - 5y).
Hence, 4x2 - 25y2 = (2x + 5y)(2x - 5y).
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Factorise the following:
4x2 - 25y2
40 Likes
4x2 - 25y2 = (2x)2 - (5y)2.
Using identity,
a2 - b2 = (a + b)(a - b).
(2x)2 - (5y)2 = (2x + 5y)(2x - 5y).
Hence, 4x2 - 25y2 = (2x + 5y)(2x - 5y).
Answered By
26 Likes