Solve the following quadratic equation.
7x²+x-3=0
Answers
Answered by
8
Given Quadratic equation ➝ 7x² + x - 3 = 0
For finding the value of x, we apply the quadratic formula.
where:
- a = 7
- b = 1
- c = -3
Now there are 2 possible values of x that is:
KNOW MORE:
For solving any given polynomial, there are 3 methods:
- Factorising (if possible)
- Applying quadratic formula
- Completing the square method
Answered by
2
Given to Factorise:-
7x²+x-3=0
Formula used:-
Here,
a= 7
b= 1
c= -3
Applying the formula:-
Hence,
The possible roots are:-
1st root=
=0.587
=0.59
2nd root-
= -0.73 (approx)
If we substitute the values of 1st root we get the value 0.0267 which is approximate 0 and if we substitute the 2nd root we get the value 0.0003 which is also approximate equals to 0 hence the given roots are:-
x= 0.59, -0.73
Note:If we don't round off the values we will get the value more close to zero but according to the rule we have to round off so I rounded off it.
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