Solve 3x2 + 2x + 7 = 0. Round solutions to the nearest hundredth.
Solution:
A quadratic equation is an algebraic expression of the second degree in x.
The standard form of a quadratic equation is ax2 + bx + c = 0,
Where a, b are the coefficients,
x is the variable, and
c is the constant term.
Given, the equation is 3x2 + 2x + 7 = 0
We have to find the solutions of the equation.
Using the quadratic formula,
\(x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}\)
Here, a = 3, b = 2 and c = 7
\(x=\frac{-2\pm \sqrt{(2)^{2}-4(3)(7)}}{2(3)}\\=\frac{-2\pm \sqrt{4-84}}{6}\\=\frac{-2\pm \sqrt{-80}}{6}\)
Since there is a negative element under the square root, there are no real solutions.
Therefore, there are no real solutions to the given equation.
Solve 3x2 + 2x + 7 = 0. Round solutions to the nearest hundredth.
Summary:
The equation 3x2 + 2x + 7 = 0 has no real solution.
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