tn3235
tn3235 tn3235
  • 02-04-2020
  • Mathematics
contestada

Use the Quadratic Formula to solve

x²-13x+42=0

Respuesta :

miljanamilovanovic12
miljanamilovanovic12 miljanamilovanovic12
  • 02-04-2020

Answer:

x1=7,

x2=6

Step-by-step explanation:

x²-13x+42=0

a=1, b=-13, c=42

x1,2=(-b+-sqrt(b^2-4ac)) /2a

x1,2=(-(-13)+-sqrt((-13)^2-4*1*42))/2*1

x1,2=(13+-sqrt (169-168))/2

x1,2=(13+-sqrt(1))/2

x1,2=(13+-1)/2

x1=(13+1)/2, x2=(13-1)/2

x1=14/2, x2=12/2

x1=7, x2 =6

Answer Link

Otras preguntas

PLEASE HELP!!! What is the solution to the system of equations below y= -3x + 5 and y= 4x -2
Which of the following describes the NATO & Warsaw Pact? A. Competing economic treaties in Southeast Asia B. Failed attempts at peaceful negotiations betwe
Given g(x) = x^2 - x, find g (2/3).
look at the picture and plzzz help and give me the right answer
Gardner's view, only two types of intelligence are measured by traditional intelligence tests: ____.
write 23 in significant notation​
Escribe las palabras de la manera correcta Herege Esqueje Carruaje Masage Pesage Embalaje Espionaje Montage Homenage Vendaje Ropaje Dege Despege Aterrizaje Anc
If a pregnant woman drinks 2-5 alcoholic drinks per day, what effects does this have on the developing baby?
How do I find the value of x
is immoral an adaptation?