freemankellie freemankellie
  • 04-04-2019
  • Mathematics
contestada

Which method is the most efficient method to use to solve x^2+5x-6=0

Respuesta :

carlosego
carlosego carlosego
  • 04-04-2019

Answer:

Factoring

Step-by-step explanation:

We have the function [tex]x ^ 2 + 5x-6 = 0[/tex]

To factor this expression we must look for two numbers a and b that when adding them give as a result 5 and multiplying them give as a result -6

Then the factorization will have the form

[tex](x + a)(x + b)[/tex]

You can verify that:

[tex]a = 6\\b = -1\\6(- 1) = -6\\6 -1 = 5[/tex]

So:

[tex]x ^ 2 + 5x-6 = (x + 6)(x-1) = 0[/tex]

So:

The solutions are:

[tex]x = -6\\x = 1[/tex]

Answer Link

Otras preguntas

What is ford wrong about that us currently an issue in the world
point obligation in the classroom ​
cho tập hợp A= { x= n² + 2 + 7 / n thuộc Z, -2 < n ≤ 3 } . Hãy viết tập hơp A bằng cách liệt kê các phần tử
How do we know Jesus was the Prophet sent from God?
for the different values given for the radius of curvature r and speed v, rank the magnitude of the force of the roller-coaster track on the cart at the bottom
Explain what the following sentence reveals about Unoka’s priorities: “He always said that whenever he saw a dead man’s mouth he saw the folly of not eating wha
Concrete was invented by the _____________ 2,000 years ago.
I need help. This is hard
Prokaryotes cells vs eukaryotic cell? (Besides pro having no nucleus and eu does have)
find the nth term for the sequence 3,12,27,48,75