Factorise: 5x^2 - 2xy -16y^2
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Answer:
(x-2y) (5x+8y)
Step-by-step explanation:
=5x^2 - 10xy + 8xy-16y^2
=5x(x-2y)+8y(x-2y)
= (x-2y)(5x+8y)
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