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For the following quadratic equation, find the discriminant.

-6x^(2)+20 x+36=-7x^(2)
Answer:

For the following quadratic equation, find the discriminant.\newline6x2+20x+36=7x2 -6 x^{2}+20 x+36=-7 x^{2} \newlineAnswer:

Full solution

Q. For the following quadratic equation, find the discriminant.\newline6x2+20x+36=7x2 -6 x^{2}+20 x+36=-7 x^{2} \newlineAnswer:
  1. Simplify Quadratic Equation: First, we need to simplify the quadratic equation by moving all terms to one side of the equation.\newline6x2+20x+36=7x2-6x^{2} + 20x + 36 = -7x^{2}\newlineAdd 7x27x^{2} to both sides to combine like terms.\newline6x2+7x2+20x+36=0-6x^{2} + 7x^{2} + 20x + 36 = 0
  2. Combine Like Terms: Now, we simplify the left side of the equation by combining like terms.\newline(7x26x2)+20x+36=0(7x^{2} - 6x^{2}) + 20x + 36 = 0\newlinex2+20x+36=0x^{2} + 20x + 36 = 0
  3. Standard Form: The quadratic equation is now in standard form, which is ax2+bx+c=0ax^{2} + bx + c = 0. Here, a=1a = 1, b=20b = 20, and c=36c = 36. To find the discriminant of a quadratic equation, we use the formula: discriminant=b24ac\text{discriminant} = b^{2} - 4ac.
  4. Calculate Discriminant: Substitute the values of aa, bb, and cc into the discriminant formula.discriminant=2024(1)(36)\text{discriminant} = 20^{2} - 4(1)(36)discriminant=400144\text{discriminant} = 400 - 144
  5. Final Calculation: Now, calculate the value of the discriminant.\newlinediscriminant = 400144400 - 144\newlinediscriminant = 256256

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