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If x= 1
____ , find the value x3 - 2x²-7x+5
2-√3
Dear ARTI SHARMA,
I cannot CLEARLY UNDERSTAND IT..
Please upload the problem and I will help you for sure..
All the Very Best & Good Luck to you ..
Best Regards,
AskIITians Expert,
Godfrey Classic Prince
IIT-M
x=1/2-√3
=> 2x-√3x=1
=> 2x-1=√3x
squaring on both the sides
=> 4x² + 1-4x = 3x²
=> x²-4x+1=0=q(x)...[say]....................(1)
divide this equation by x³ - 2x²-7x+5=p(x)....[say]
=>p(x)=q(x).(x+2)+3.. [please solve it]
from(1)
=0.(x+2)+3
=3 ans.
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