factorise by grouping method
x(6x - 5y) - 4 (6x - 5y)2
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Answer:
=> (6x - 5y)(- 23x + 20y)
Step-by-step explanation:
x(6x - 5y) - 4(6x - 5y)²
=> (6x - 5y)[x - 4(6x - 5y)]
=> (6x - 5y)(x - 24x + 20y)
=> (6x - 5y)(- 23x + 20y)
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