Respuesta :
Answer: [tex]m^2 - 13m + 38 = 0[/tex]
Step-by-step explanation:
[tex]m = x^2\\(x^2-5)^2-3x^2+15=-2.[/tex]
We can go simplify the equation by simplifying the first polynomial:
[tex](x^2-5)^2 = x^4 - 10x^2+25[/tex]
Then, we can substitute that in the original equation:
[tex]x^4 - 13x^2 + 38 = 0[/tex]
Now, we can substitute m for every x^2.
Knowing that x^4 = x^2 * x^2, we can write this as m^2:
[tex]m^2 - 13m + 38 = 0[/tex]
Answer: m² - 13m + 42 = 0
Step-by-step explanation:
Given m = x²
Then original equation
( x² - 5 )² - 3x² + 15 = -2
Now replace x² by m
( m - 5 )² - 3m + 15 = -2
Now considering ( m - 5 )² , we can open or expand the expression and later simplify. Therefore
( m - 5 )² = m² -10m + 25
Now put this in the above expression and simplify.
( m- 5 )² - 3m + 15 = -2 ,now becomes
(m² - 10m + 25) - 3m + 15 = -2
m² - 10m -3m + 25 + 15 + 2 = 0
m² - 13m + 42 = 0