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If (x=1) and (x=5) are both zeros of (p(x)=x^3+ax^2+bx-10), what is (a)?यदि (p(x)=x^3+ax^2+bx-10) में (x=1) और (x=5) दोनों शून्य हैं, तो (a) क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-6)(-6)
(p(1)=0) gives (a+b=9) and (p(5)=0) gives (5a+b=-23), so (a=-8). None of the listed choices is correct.(p(1)=0) से (a+b=9) और (p(5)=0) से (5a+b=-23), इसलिए (a=-8) नहीं बल्कि (a=-8) आता है। विकल्पों में कोई सही नहीं है।
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