Question

determine whether the equation is quadratic or not x(x+3)+5 =x² +9x+8​

Answer 1

Answer:

no

Step-by-step explanation:

quadratic equation is a equation which is in the form of ax^2+bx+c=0

while by simplifying x(x+3)=x^2+9x+8

we get 12x+13

thus it is not a quadratic Equation

Answer 2

The given equation is not a quadratic equation.

Given,

the equation x(x+3)+5 =x² +9x+8

To Find,

whether the equation is quadratic or not

Solution,

A second-order polynomial equation with a single variable, x, is known as a quadratic equation.

Quadratic equation is of the form ax² + bx + c = 0, with a≠0.

It has two solutions since it is a second-order polynomial equation, which is guaranteed by the fundamental theorem of algebraic.

These answers could be real or complex.

The given equation is x(x+3)+5 =x² +9x+8.

We can simplify this equation to find out whether the equation is quadratic or not.

⇒ x(x + 3) + 5 = x² + 9x + 8

⇒ x² + 3x + 5 = x² + 9x + 8

⇒ x² + 9x + 8 - x² + 3x + 5 = 0

⇒ 6x + 3 = 0

⇒ 2x + 1 = 0

This equation is a linear equation in one variable. Hence, it is not a quadratic equation.

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