Q. For the following quadratic equation, find the discriminant.−3x2+48x−125=x2+3Answer:
Rearrange quadratic equation: Bring all terms to one side of the equation to get a standard form of a quadratic equation ax2+bx+c=0.−3x2+48x−125−x2−3=0Combine like terms.(−3x2−x2)+48x+(−125−3)=0−4x2+48x−128=0
Identify coefficients: Identify the coefficients a, b, and c from the standard form of the quadratic equation.a=−4, b=48, c=−128
Calculate discriminant: Use the discriminant formula for a quadratic equation, which is D=b2−4ac. Substitute the identified coefficients into the formula. D=(48)2−4∗(−4)∗(−128)
Calculate discriminant: Use the discriminant formula for a quadratic equation, which is D=b2−4ac. Substitute the identified coefficients into the formula. D=(48)2−4∗(−4)∗(−128) Calculate the discriminant. D=2304−4∗4∗128D=2304−2048D=256
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