Sponsor Area

गुणनखंड

Question
CBSEHHIMAH8004162

व्यंजक के गुणनखंड कीजिए और निर्देशानुसार भाग दीजिए:
(5p2 - 25p + 20) divided by (p - 1)


Solution

∵      5p2 - 25p + 20 = 5(p2 - 5p + 4)               [∵ 1 × 4 = 4]
                            = 5[p(p - 1) - 4(p - 1)]   [-1 + (-4) = -5]
                            = 5[(p - 1)(p - 4)]
∴     fraction numerator 5 straight p squared minus 25 straight p plus 20 over denominator straight p minus 1 end fraction space equals space fraction numerator 5 left parenthesis straight p minus 1 right parenthesis left parenthesis straight p minus 4 right parenthesis over denominator left parenthesis straight p minus 1 right parenthesis end fraction space equals space fraction numerator 5 cross times left parenthesis straight p space minus 4 right parenthesis over denominator 1 end fraction
अत: (5p2 - 25p + 20) divided by(p - 1) = 5(p-4)