Respuesta :
The expression x²+ 4x = 11 x², is not a quadratic equation.
What is quadratic equation?
A quadratic problem in mathematics is one that deals with a variable multiplied by itself — an operation known as squaring. The area of a square is equal to its side length multiplied by itself in this language. The term "quadratic" is derived from quadratum, which is the Latin word for square.
A quadratic equation would be any equation that can be reorganised in standard form as:
[tex]{\displaystyle ax^{2}+bx+c=0\,}[/tex]
Quadratic equations describe a wide range of real-world phenomena, including where a rocket ship will land, how much to charge for a product, and how long it takes a person to row up and down a river. Quadratics have profound historical significance and were fundamental to the history of algebra due to their wide range of applications.
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