Answer:
The roots are;
x = (2 + i)/5 or (2-i)/5
where the term i is the complex number representing the square root of -1
Step-by-step explanation:
Here, we want to use the completing the square method to solve the quadratic equation;
f(x) = -5x^2 + 4x -1
Set the function to zero
0 = -5x^2 + 4x - 1
So;
-5x^2 + 4x = 1
divide through by the coefficient of x which is -5
x^2 - 4/5x = -1/5
We now take half of the coefficient of x and square it
= -2/5^2 = 4/25
add it to both sides
x^2 - 4x/5 + 4/25= -1/5 + 4/25
(x- 2/5)^2 = -1/5 + 4/25
(x - 2/5)^2 = -1/25
Take the square root of both sides
x - 2/5 = √( -1/25
x - 2/5 = +i/5 or -i/5
x = 2/5 + i/5 or 2/5 - i/5
Answer:
4
Step-by-step explanation:
The degree of a polynomial is the highest of the degrees of the polynomial's monomials with non-zero coefficients
Answer:
Step-by-step explanation:
hello :
(x-4)²(x+3)² = -1
means : ((x-4)(x+3))² = - 1 this equation has no solutions in R
because for all x in R : ((x-4)(x+3))² ≥ 0
I think it’d be 2 but I’m not really sure
The unit rate for every 1 student out of school, there are 10 students going to school is 10 students going to school per 1 student out of school
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
A unit rate is a ratio between two different units with a denominator of one.
If For every 1 student out of school, there are 10 students going to school, hence:
Unit rate = 10/1 = 10 students going to school per 1 student out of school
The unit rate for every 1 student out of school, there are 10 students going to school is 10 students going to school per 1 student out of school
Find out more on equation at: brainly.com/question/2972832
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