Identify values: Identify the values of a, b, and c by comparing the given quadratic equation3x2+2x+5=0 with the standard form ax2+bx+c=0. Here, a=3, b=2, and c=5.
Recall formula: Recall the formula for the discriminant of a quadratic equation, which is D=b2−4ac.
Substitute values: Substitute the identified values of a, b, and c into the discriminant formula.So, D=(2)2−4×3×5.
Perform calculations: Perform the calculations to find the value of the discriminant.D=4−4×3×5D=4−60D=−56