factorise 5x²y+10xy²-15x³y³
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Step-by-step explanation:
5x²y + 10xy² - 15x³y³
5x²y + (15-5)xy² - 15x³y³
5x²y + 15xy² - 5xy² - 15x³y³
5xy (x + 3y) - 5xy² (1 - 3x²y)
(5xy - 5xy²) (x + 3y) (1 - 3x²y)
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