X²+7x-1=0 find the value of discriminant
Answers
Answered by
6
here is your answer by Sujeet yaduvanshi,
Here
a=1
b=7
c=-1
Then,
A/Q
Discriminant =b²-4ac
= (7)²-4.1.-1
= 49-4(-1)
= 49+4
= 53
that's all
Here
a=1
b=7
c=-1
Then,
A/Q
Discriminant =b²-4ac
= (7)²-4.1.-1
= 49-4(-1)
= 49+4
= 53
that's all
Answered by
1
Question :-
✎ Which of the following is the value of the discriminant for x² + 7x + 1 = 0 :-
A) -5
B) 17
C) 45
Given :-
x² + 7x + 1 = 0
Find Out :-
What is the discriminate value of that equation.
Solution :-
✭ x² + 7x + 1 = 0
here,
⊙ a = 1
⊙ b = 7
⊙ c = 1
As we know that :
✯ ✯
By putting values we get,
➙ Discriminate = (7)² - 4(1)(1)
➙ Discriminate = 49 - 4 × 1 × 1
➙ Discriminate = 49 - 4
➙
Henceforth, the discriminate value of that equation is 45.
Correct options is C) 45.
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