Marcus solved for x in the quadratic equation x2 - 10x + 25 = 0. x = StartFraction negative b plus or minus StartRoot b squared minus 4 a c EndRoot Over 2 a EndFraction x = StartFraction negative (10) plus or minus StartRoot (10) squared + 4 (1) (25) EndRoot Over 2 (1) EndFraction x = StartFraction negative 10 plus or minus StartRoot 200 EndRoot Over 2 EndFraction What is true about Marcus's work? Check all that apply. Marcus should have substituted - 10 for b, not 10. The denominator should be 1, not 2. Marcus should have subtracted 4 (1) (25) in the square root. This equation, when solved correctly, only has 1 real number solution. This equation has 2 real number solutions.
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