strawberry44
strawberry44 strawberry44
  • 12-02-2018
  • Mathematics
contestada

What are the zeros of the equation 4x^2 = 4?

Respuesta :

jimthompson5910 jimthompson5910
  • 12-02-2018
4x^2 = 4
4x^2 - 4 = 0
4(x^2 - 1) = 0
x^2 - 1 = 0/4
x^2 - 1 = 0
(x-1)(x+1) = 0 <<--- use the difference of squares rule
x-1 = 0 or x+1 = 0
x = 1 or x = -1

The roots are x = 1 or x = -1

Note: "Root" is another term for "solution" or "zero" of a function
If we replace x with 1 or -1 back in the original equation, it leads to a true equation.

Answer Link

Otras preguntas

Which pair consists of a molecular formula and its corresponding empirical formula? (1) C2H2 and CH3CH3 (3) P4O10 and P2O5 (2) C6H6 and C2H2 (4) SO2 and SO3
A nuclear reaction in which two light nuclei combine to form a more massive nucleus is called (1) addition (3) fusion (2) fission (4) substitution
chemistry is best defined as the study of what
A sample of gas confined in a cylinder with a movable piston is kept at constant pressure. The volume of the gas doubles when the temperature of the gas is chan
Marguerite made the table to compare to a metric measures of l
What were the causes of the Mexican-American War?
write the closest benchmark for the percent 8%
one whole and a half plus one and 8 in simplest form
In legislative terms, a bill is a proposal A. made in the House of Representatives. B. made in the Senate. C. for any law. D. that has reached committee for
How do the citizens of Rome view Caesar at the start of Shakespeare's Julius Caesar? (Points : 3) He is loved because he is a charismatic and succ