crazygamingkid89
crazygamingkid89 crazygamingkid89
  • 22-03-2021
  • Mathematics
contestada

someone please help me I have 10 minutes to submit it!!​

someone please help me I have 10 minutes to submit it class=

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 22-03-2021

Answer:

x = 5 or x = -5

Step-by-step explanation:

| a b |

| c d |

det = ad - bc

| x 4 |

| 3 x |

det = x * x - 4 * 3 = x^2 - 12

x^2 - 12 = 13

x^2 = 25

x^2 - 25 = 0

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

x = 5 or x = -5

Answer Link

Otras preguntas

what does prime meridian mean
Find the first three iterates of the fiction for the given initial value F(x)=x+2, x0=0
what is 54 divided by 7
Three consecutive numbers have a combined sum of 654. Name the smallest of the three largest numbers.
What action caused the greatest human loss for Napoleon’s army?
Which of these follows a cyclical pattern? A. sunspot maxima and minima B. condensation of a nebula C. formation of a crater D. formation of a black hole
How many political entities are in mainland South America
What is the answer to -5x+7y=11 -5x+3y=19
what does tropic of cancer meansplease help :(....
what is beyond the city of ember?                               for the book:                                                  the city of ember