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Can I use a linear equation to solve a quadratic equation? Why or why not?

2007-02-28 02:48:02 · 6 answers · asked by Opal B 1 in Science & Mathematics Mathematics

6 answers

do u mean l simultaneous equations
u can use a linear eq. to solve a quadratic eq.

2007-02-28 02:52:24 · answer #1 · answered by Maths Rocks 4 · 0 0

No, you can't.

A linear equation presupposes that the rate of increment is constant (e.g. 2,5,8,11,... or basically an increase of 3 to get the next number), while a quadratic equation's rate of increment is not constant (e.g. 1,2,6,15,... or basically an increase by squares of numbers to get the next one).

Another reason, would be the range of answers you can get. For a linear equation, you can actually get any real number as the answer, whereas for a quadratic equation you can only have a maximum or a minimum answer, depends on the given quadratic equation.

2007-02-28 10:57:31 · answer #2 · answered by Moja1981 5 · 0 0

Yes . Any non linear equation including a quadratic equation can be solved in terms of a linear equation. One is by Use of Laplace transforms,and the other by use of logarithms.

2007-02-28 10:56:45 · answer #3 · answered by goring 6 · 0 0

quadratic equation has x to power of 2 (order 2) while linear eqn only has x to power 1.

so the solving methods are different.

and also, what do you mean when you say "use a linear equation to solve a quadratic equation" do u mean the method?

2007-02-28 10:52:19 · answer #4 · answered by Matthew N 5 · 0 0

why not?you can USE a linear equation to solve a quadratic equation.But if your question is whether you can solve a second degree equation with one equation you cannot as you wont get a unique solution

2007-02-28 10:52:42 · answer #5 · answered by raj 7 · 0 0

You can if x is squared.

2007-02-28 10:58:44 · answer #6 · answered by ĦΛЏĢħŦŞŧμρђ 2 · 0 0

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