Given the trinomial 5x^2-2x-3, predict the type of solutions.
Given: 5x^2 - 2x - 3
Using a calculator to obtain the solutions to the given trinomial, the solutions obtained are 1 and -3/5. The values 1 and -3/5 are rational and real numbers. Therefore, the type of solutions obtained are rational and real.
Consider the trinomial \(5x^2-2x-3.\)
1. Find the discriminant:
\(D=b^2-4ac=(-2)^2-4\cdot 5\cdot (-3)=4+60=64,\\ \\\sqrt{D}=8>0.\)
2. Find the roots of given trinomial:
\(x_{1,2}=\dfrac{-b\pm \sqrt{D}}{2a}=\dfrac{2\pm 8}{2\cdot 5}=1,-0.6.\)
3. Conclusion: given trinomial has two different real roots.