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प्रश्न
Factorise the expression and divide them as directed.
(5p2 − 25p + 20) ÷ (p − 1)
उत्तर
5p2 − 25p + 20 = 5(p2 − 5p + 4)
= 5[p2 − p − 4p + 4]
= 5[p(p −1) − 4(p −1)]
= 5(p −1) (p − 4)
= (5p2 − 25p + 20) ÷ (p − 1)
= `(5(p-1)(p-4))/(p-1)`
= 5(p − 4)
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