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Find the discriminant.\newliner2+4r+4=0r^2 + 4r + 4 = 0

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Q. Find the discriminant.\newliner2+4r+4=0r^2 + 4r + 4 = 0
  1. Identify coefficients: Identify the coefficients aa, bb, and cc from the quadratic equation r2+4r+4=0r^2 + 4r + 4 = 0 by comparing it to the standard form ax2+bx+c=0ax^2 + bx + c = 0. Here, a=1a = 1, b=4b = 4, and c=4c = 4.
  2. Recall discriminant formula: Recall the formula for the discriminant of a quadratic equation, which is D=b24acD = b^2 - 4ac.
  3. Substitute values into formula: Substitute the identified values of aa, bb, and cc into the discriminant formula.\newlineD=(4)24×1×4D = (4)^2 - 4 \times 1 \times 4
  4. Perform calculations: Perform the calculations to find the value of the discriminant.\newlineD=164×4D = 16 - 4 \times 4\newlineD=1616D = 16 - 16\newlineD=0D = 0

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