Factorise 52m^3 [50m² - 98] ÷ 26 m² [5m + 7]
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Answer:
4m(5m - 7)
Step-by-step explanation:
52m^3 [50m² - 98] ÷ 26 m² [5m + 7]
= [52 m^3 / 26m^2] × [(50m² - 98) / (5m + 7)]
= [2 m] × [2(25m² - 49) / (5m + 7)]
= [2 m] × [2(5m - 7) (5m + 7) / (5m + 7)]
= [2 m] × [2(5m - 7)]
= 2m × 2(5m - 7)
= 4m(5m - 7)
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