Jared1111111
Jared1111111
21-11-2016
Mathematics
contestada
what is the answer to (5x+1)(x+2)=-1
Respuesta :
adriana31
adriana31
21-11-2016
expand it so the expression would equal
5x^2+11x+2=-1
move the negative one over by adding one to both sides
5x^2+11x+3=0
then do the quadratic formula
x=-b+/- (√(b^2-4ac))/2a
where b = 11 a=5 and c=3
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