If alpha and beta are the zeroes of a quadratic polynomial 4x2+4x+1 then form quadratic polynomial whose zeroes are 2 alpha and 2 beta
Answers
Answered by
13
HEY FRIEND ☺
HERE IS YOUR ANSWER
=4x²+4x+1
=4x²+2x+2x+1
=2x(2x+1)+1(2x+1)
=(2x+1)(2x+1)
2x+1=0
x= -1/2
α=-1/2
2x+1=0
x= -1/2
β=-1/2
SO α= -1/2 and β=-1/2
==============================
QUADRATIC POLYNOMIAL WHOSE ZEROES ARE 2α AND 2β
2α=2×-1/2= -1
2β=2×-1/2= -1
SUM OF ZEROES :
=2α+2β
= -1-1
= -2
PRODUCT OF ZEROES:
=2α×2β
= -1×-1
=1
===============================
REQUIRED POLYNOMIAL :
=x²- (sum of zeroes)x +product of zeroes
=x²-(-2)x+1
=x²+2x+1
SO THE REQUIRED POLYNOMIAL IS x²+2x+1
===============================
HOPE THIS HELPS YOU ☺
HERE IS YOUR ANSWER
=4x²+4x+1
=4x²+2x+2x+1
=2x(2x+1)+1(2x+1)
=(2x+1)(2x+1)
2x+1=0
x= -1/2
α=-1/2
2x+1=0
x= -1/2
β=-1/2
SO α= -1/2 and β=-1/2
==============================
QUADRATIC POLYNOMIAL WHOSE ZEROES ARE 2α AND 2β
2α=2×-1/2= -1
2β=2×-1/2= -1
SUM OF ZEROES :
=2α+2β
= -1-1
= -2
PRODUCT OF ZEROES:
=2α×2β
= -1×-1
=1
===============================
REQUIRED POLYNOMIAL :
=x²- (sum of zeroes)x +product of zeroes
=x²-(-2)x+1
=x²+2x+1
SO THE REQUIRED POLYNOMIAL IS x²+2x+1
===============================
HOPE THIS HELPS YOU ☺
Answered by
3
Answer:
Step-by-step explanation:
Attachments:
Similar questions