Q. For the following quadratic equation, find the discriminant.3x2+42x+74=6x−7Answer:
Rearrange equation: Bring all terms to one side of the equation to get it into standard quadratic form ax2+bx+c=0. 3x2+42x+74−6x+7=0 Combine like terms. 3x2+(42x−6x)+(74+7)=0 3x2+36x+81=0
Identify coefficients: Identify the coefficients a, b, and c from the standard form of the quadratic equation.a=3, b=36, c=81
Use discriminant formula: Use the discriminant formula for a quadratic equation, which is b2−4ac. Discriminant (D) = b2−4ac
Substitute values: Substitute the identified values into the discriminant formula.D=362−4(3)(81)
Calculate discriminant: Calculate the discriminant.D=1296−4(3)(81)D=1296−972D=324
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