We can also use Sum of Roots = -b/a TRICK 😎
Let's solve an interesting degree 4 polynomial question asked in BITSAT 2022 exam.
The question is:
The root of the equation x^4-2x^3+x=380 are:-
A. 5,-4,(1+-5sqrt(-3))/2
B. -5,4,(-1+-5sqrt(-3))/2
C. 5,4,(-1+-5sqrt(-3))/2
D. -5,-4,(1+-5sqrt(-3))/2
If you'll go with the standard approach to solve this question you'll take a lot of time.
But when you have Bhannat sir, the solution will also be different and unique.
Do give this question an attempt and see if you solve this in 30 seconds.
If not check out the approach by Aman Malik sir to solve this question.
You can use a similar approach for many other competitive exams like JEE Mains, VITEEE, WBJEE etc.
Subscribe to the channel for more interesting question from competitive exams.
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