My son asked me for help with his homework and it was a quadratic equation. I looked it up in wikipedia because when I went to school they didn't teach stuff like this. It all looked like chinese to me. Could one of you math geniuses explain to me what it is all about? I feel totally stupid when trying to help him. He is taking Algebra 2 and I don't remember anything like that when I was in school.
2006-10-16 11:53:13 · 7 answers · asked by miamac49616 4 in Science & Mathematics ➔ Mathematics
I think I need to go back to school just to understand what you all just said. I have been out of school for nearly 25 yrs. Wished they would have taught us that stuff then I wouldn't feel so stupid.
2006-10-16 12:05:28 · update #1
I think I need to go back to school just to understand what you all just said. I have been out of school for nearly 25 yrs. Wished they would have taught us that stuff then I wouldn't feel so stupid.
2006-10-16 12:05:40 · update #2
The quadratic equation is used to solve an equation that has squared terms in it. You put the problem into a standard form and then plug values into the quadratic equation to find the solutions. There are generally two solutions and context determines which one is correct for your particular situation.
Aloha
2006-10-16 11:59:09 · answer #1 · answered by Anonymous · 1⤊ 0⤋
enable the equation be ax^2 + bx + c = 0.............the place a, b ,c are constants enable.........D = (b^2 - 4ac) If D < 0...........then the equation has no real strategies (ie purely complicated strategies). If D = 0...........then the equation has one real answer (or the strategies are an analogous). If D > 0...........then the equation has 2 strategies (they are real). to locate a quadratic equation from the strategies the main uncomplicated way is : enable the strategies be 'm' and 'n'. enable us to take 'x' because of the fact the variable. now write........(x-m)*(x-n)=0. Multiply and get the equation. via multiplying the equation you acquire this form with any consistent will yield you yet another quadratic equation with an analogous answer. for this reason there are countless kind of quadratic equation with an analogous strategies.
2016-12-13 09:31:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
A quadratic is an equation involving a variable raised to the second power (square, hence the quadra that refers to the 4 corners of a square).
x^2-4x+8=0 is a quadratic equation.
2006-10-16 11:56:35 · answer #3 · answered by Vincent G 7 · 0⤊ 0⤋
Its an equation with a single variable where the highest power is 2.
The form is
ax^2 +bx+c=0
you can solve it using the quadratic formula:
-b +or- (the square root of b^2 - 4ac)/2a
2006-10-16 11:59:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
a quadratic equation is a second degree equation of the type ax^2+bx+c=0 where a,b andd c are elements of R and a is non zero
2006-10-16 12:01:30 · answer #5 · answered by raj 7 · 0⤊ 0⤋
It is an equation wherein there areone or more variable involved and the highest level of the exponent is two..
Ex: x^2 + y^2 = 0
2006-10-16 12:28:59 · answer #6 · answered by mi-an 2 · 0⤊ 0⤋
x= -b+and- times the square root of b squared -4ac. Put 2a under this to make it a fraction.
2006-10-16 11:59:27 · answer #7 · answered by lakersforlife 3 · 0⤊ 1⤋