Djeanrosecadaviz
Djeanrosecadaviz
Math
Answered
2x^2-3x-5=0 Using the quadratic formula
Sagot :
Rayngleviz
Rayngleviz
2x²-3x-5=0
x= -b±√(b²-4ac)
--------------
2a
= -(-3)±√[(3²)-4(2)(-5)]
----------------------
2(2)
=3±√(9+40)
------------
4
=3±√49
--------
4
=3±7 = -4 or 10
----- = ---------
4 4
x= -1 or 2.5
Answer Link
Bardenbardenviz
Bardenbardenviz
2
x2
+2x−5x−5=0
2x(x+1)−5(x+1)=0
(x+1)(2x−5)=0
x=−1,
5/2
Answer Link
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