Question

2 Marks :
Find the polynomial whose zeroes a
5 + 119 and 5 -
$\sqrt{19}$
19.​

Answer 1

Answer:

A=5+√19

B=5-√19

x²-(A+B)x+AB

x²-(5+√19-5+√19)+(5+√19)(5-√19)

x²-2√19+(5)²-(√19)² —— [a+b)(a-b)=a²-b²]

x²-2√19+25-19

x²-2√19+6

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