2xsquared +3x+1=0 solve using quadratic formula
1 answer:
Answer:
<em>x</em> = , -1
Step-by-step explanation:
The quadratic formula is: <u>-b±√b²-4ac</u>
2a
The discriminant (Δ) is b²-4ac. Evaluating this expression after substituting for <em>a, b </em>and <em>c</em> helps you identify the number of real solutions to the quadratic equation.
<em>a </em>= 2, <em>b</em> = 3, <em>c </em>= 1
Δ = -3²- 4 x 2 x 1;
Δ = 1
<u>-3±1 </u>
4
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Answer: The required value is
Step-by-step explanation: The given functions are:
We are given to find the value of
We know that, if s(x) and t(x) are any two functions of a variable x, then we have
Therefore, we have
Thus, the required value is