Respuesta :
The square of a number decreased by 8 is equal to twice the number is 4 and -2.
What is a Quadratic equation?
It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.
Given
The square of a number decreased by 8 is equal to twice the number.
How to find the number?
Let n be the number.
The square of a number decreased by 8 is equal to twice the number. Then according to the statement.
n² - 8 = 2n
On simplifying, we have
n² - 2n - 8 = 0
On factorizing
n² - 4n + 2n - 8 = 0
( n - 4 ) ( n + 2 ) = 0
So the number will be 4 and -2.
More about the quadratic equation link is given below.
https://brainly.com/question/2263981
