October12 October12
  • 15-03-2016
  • Mathematics
contestada

25x^2+1=5 quadratic

Respuesta :

olemakpadu
olemakpadu olemakpadu
  • 15-03-2016
25x² + 1 = 5

25x² + 1 - 5 = 0

25x²  - 4 = 0          By difference of two squares

(5x)² - (2)² = 0

(5x - 2)(5x + 2) = 0

5x - 2 = 0    or          5x + 2 = 0

5x = 0 + 2                5x = 0 - 2

5x = 2                      5x = -2 

x = 2/5                      x = -2/5

x = 0.4                      x = -0.4 
 

x = + 0.4  or -0.4
Answer Link

Otras preguntas

All quadrilaterals have four sides. All squares are quadrilaterals. Therefore, ________________ all polygons are squares. all squares are parallelograms. all sq
Science Experiments: What does Interpretation of Data mean?
cube root (6.4 * 10^10)
Write the inequality in interval notation X is greater than or equal to negative 4
What is penelope test and how does odysseus pass it
What is penelope test and how does odysseus pass it
An electron in a sodium atom moves from the third shell to the fourth shell. This change is a result of the atom (1) absorbing energy (3) gaining an electron (2
to produce a beneficial version of a trait in an animal, what type of process is used?
Renee has a jewelry business where her clients create their own bracelets from antique buttons. she charges $15 for the entire activity, which includes the stri
what decision did mrs. till make that helped ignite action in The civil rights movement