SOLUTION: 5x^2-25x+20=0

Question 1015278: 5x^2-25x+20=0

Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
5x^2 -25x +20 = 0
divide both sides of = by 5
x^2 -5x +4 = 0
fator polynomial
(x-4) * (x-1) = 0
Note that * means multiply
then
x-4 = 0
x = 4
:
x-1 = 0
x = 1
:
solution is x = 4 or 1
:
verify our solution by substituting for x in original equation
5*(1^2) -(25*(1)) +20 = 0
5 -25 +20 = 0
0 = 0
:
5*(4^2) -(25*(4)) +20 = 0
80 -100 +20 = 0
0 = 0
:
our answer checks

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