Q. For the following quadratic equation, find the discriminant.−6x2−12x−3=−5x2−4xAnswer:
Simplify the equation: First, we need to simplify the given quadratic equation by combining like terms on both sides.The given equation is:−6x2−12x−3=−5x2−4xTo simplify, we'll move all terms to one side to get a standard form of a quadratic equation ax2+bx+c=0.−6x2+5x2−12x+4x−3=0Now, combine like terms.(−6x2+5x2)+(−12x+4x)−3=0−1x2−8x−3=0
Move terms to one side: Now that we have the quadratic equation in standard form, we can find the discriminant. The discriminant of a quadratic equation ax2+bx+c is given by the formula:Discriminant (D)=b2−4acFor our equation, a=−1, b=−8, and c=−3.
Combine like terms: Let's calculate the discriminant using the values of a, b, and c.D=(−8)2−4∗(−1)∗(−3)D=64−4∗1∗3D=64−12D=52