1) (x + 1/9) (x -2/7)
2) 128 p3-250/p3
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Given : (x + 1/9) (x -2/7)
128 p³-250/p³
To Find : Simplify
Factorize
Solution:
(x + 1/9) (x -2/7)
= (9x + 1)(7x - 2)/ 63
= (1/63) ( 63x² -18x + 7x - 2)
= (1/63) ( 63x² -11x - 2)
128 p³-250/p³
= 2(64 p³-125/p³)
= 2( (4p)³ - (5/p)³)
a³ - b³ = (a - b) (a² + b² + ab)
a = 4p , b = 5/p
= 2(4p - 5/p) ( 16p² + 25/p² + 20)
= 2(4p - 5/p) ( 16p² + 25/p² + 20)
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