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umka21 [38]
3 years ago
13

Why do i have to learn the quadratic equation?

Mathematics
1 answer:
marysya [2.9K]3 years ago
5 0
<h2><u>↑I DON'T KNOW↓</u></h2>
  1. <em>IDK</em>
  2. <em>IDK</em>
  3. <em>IDK</em>
  4. <em>IDK</em>
  5. <em>IDK</em>
  6. <em>IDK</em>
  7. <em>IDK</em>
  8. <em>IDK</em>
  9. <em>IDK</em>
  10. <em>IDK</em>
You might be interested in
according to the fundemental theorem of algebra, how many roots exist for the polynomial function? f(x) = (x^3-3x+1)^2
Svetradugi [14.3K]

Answer:

6

Step-by-step explanation:

First, we can expand the function to get its expanded form and to figure out what degree it is. For a polynomial function with one variable, the degree is the largest exponent value (once fully expanded/simplified) of the entire function that is connected to a variable. For example, x²+1 has a degree of 2, as 2 is the largest exponent value connected to a variable. Similarly, x³+2^5 has a degree of 2 as 5 is not an exponent value connected to a variable.

Expanding, we get

(x³-3x+1)²  = (x³-3x+1)(x³-3x+1)

= x^6 - 3x^4 +x³ - 3x^4 +9x²-3x + x³-3x+1

= x^6 - 6x^4 + 2x³ +9x²-6x + 1

In this function, the largest exponential value connected to the variable, x, is 6. Therefore, this is to the 6th degree. The fundamental theorem of algebra states that a polynomial of degree n has n roots, and as this is of degree 6, this has 6 roots

3 0
3 years ago
F(x) = x2 + 4x − 6
german

Since

x^2+4x+4=(x+2)^2

Is a perfect square, we can think of the "-6" at the end as a "+4-10" and we have

x^2+4x-6 = x^2+4x+4-10 = (x+2)^2-10

Which is the required form

6 0
4 years ago
Which function is the inverse of f(x)=9x-3
DIA [1.3K]
F^-1(x)= x/9 + 1/3

To find this, just interchange the variables and solve for y.

y=9x-3
x=9y-3
x+3=9y
divide by nine
3 0
3 years ago
Will mark brainlest help me please​
Allushta [10]

Answer:

  • no le entiendo por qué estás en inglés

7 0
3 years ago
Pleasee help.If anyone know 12th grade math...Please help any kind hearted ones out there​
Sidana [21]

Answer:

m>7 = 142°

Step-by-step explanation:

m>6 = 38°

180° - 38° = 142°

m>7 = 142°

3 0
3 years ago
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