Question

PLZ HELPPPPP

Answer 1

Use the quadratic formula with a = 2, b = -5, and c = 1



x = -b ± sq rt b2 - 4ac
-------------------- <---------- Please note: sq rt is over entire expression of b^2 - 4ac
2a


x = - (-5) ± sq rt (-5)2 + 4(2)(1)
-------------------------------- <---------Please note: sq rt is over entire expression (-5)2 + 4(2)(1)
2(2)



x = 5 ± √17
---------
4


x = 5 + 1√17 OR x = 5 + -1√17
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4 4 4 4


Answer: x = 5 + 1√17 OR x = 5 + -1√17
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4 4 4 4