# equation

• May 18th 2005, 04:40 AM
Atomsa
equation
OPPGAVE 4

a) solve equation by using abc-formula x2 + 3x + 2 = 0

b) solve the equation by calkulater x2 - 2x +1 = -x +1
• May 18th 2005, 07:11 PM
paultwang
When is this due? What have you tried? Where are you stuck? What is abc formula?
• May 26th 2005, 12:33 PM
MathGuru
I think atomsa is referring to the quadratic equation

for $ax^2 + bx + c = 0$

the solutions are given by

$\frac {-b\pm\sqrt{b^2-4ac}}{2a}$

in this case a=1,b=3,c=2 so

$\frac {-3\pm\sqrt{3^2-4(1)(2)}}{2(1)}$