Honeybearhaag
Honeybearhaag
25-11-2014
Mathematics
contestada
What is 3 x (4x - 5) = 12x - 5
Respuesta :
kongenoch
kongenoch
25-11-2014
Isolate for x
First expand the bracket to
12x^2 - 15x = 12x - 5
Move everything to one side
12x^2 - 27x + 5
Use quadratic formula and sub in values
X = 2.046989
X = 0.203610
Answer Link
phantomore
phantomore
25-11-2014
Original :
3x(4x)+3x(5)=12x-5
Distributive Property :
3x(4x)+3x(5)=12x-5
12x+15x=12x-5
Combine like terms :
27x=12x-5
Isolate the terms :
27x-12x=12x-12x-5
15x=-5
Simplify :
15x/15=-5/15
x=-1/3
Answer :
x=-1/3 or x=-0/333...
Answer Link
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