Solve with the quadratic formula. 2p^2-4p=5

Raegan Bray 2022-07-26 Answered
Solve with the quadratic formula.
2 p 2 4 p = 5
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Answers (2)

Raul Garrett
Answered 2022-07-27 Author has 14 answers
2 p 2 4 p = 5
2 p 2 4 p 5 = 0
quadratic formula: ( b ± b 2 4 a c / 2 a )
b = -4
a = 2
c =-5
= ( 4 ) ± 4 2 4 ( 2 ) ( 5 ) / 2 ( 2 )
= 4 ± 16 + 40 / 4
= ( 4 + 56 ) / 4 or ( 4 56 ) / 4
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kadejoset
Answered 2022-07-28 Author has 2 answers
2 p 2 4 p 5 = 0
quadratic formula is x = b + / ( b 2 4 a c ) .5 / 2 a
b=-4
a=2
c=-5
thus
x = ( 4 ) + / ( ( 4 ) 2 4 2 ( 5 ) ) .5 / 2 2 )
x = ( 4 + / ( 16 + 40 ) .5 ) / 4
x = ( 4 + / ( 56 ) .5 ) / 4
x= 4/4 +/- 7.48/4
x = 1 + 1.87 = 2.87 and x = 1 - 1.87 = -0.87
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