What is 3-1+12+3 1/5 -2.67
2 answers:
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Answer:
B. x = 5/2
Step-by-step explanation:
quadratic formula is:
( ±
)/2a
when + bx + c = 0
in this equation, a = 1, b = -5, c = 25/4
plug those into the equation and simplify to get x=5/2
(because b^2-4ac in this case is equal to 0, there is only one answer)