Factorise by taking out the common factors :
xy(3x2 - 2y2) - yz(2y2 - 3x2) + zx(15x2 - 10y2)
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Given,
= xy(3x2 - 2y2) - yz[-(3x2 - 2y2)] + 5zx(3x2 - 2y2)
= xy(3x2 - 2y2) + yz(3x2 - 2y2) + 5zx(3x2 - 2y2)
= (3x2 - 2y2)(xy + yz + 5zx).
Hence, xy(3x2 - 2y2) - yz(2y2 - 3x2) + zx(15x2 - 10y2) = (3x2 - 2y2)(xy + yz + 5zx).
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3ab - 6b + 4a2 - 8a in the form of factors is :
(a + 2)(4a + 3b)
(a - 2)(4a + 3b)
(a - 2)(4a - 3b)
(a + 2)(4a - 3b)
2x(a - b) + 3y(5a - 5b) + 4z(2b - 2a)
Factorise by grouping method :
16(a + b)2 - 4a - 4b