rabjohnamanda
rabjohnamanda rabjohnamanda
  • 03-07-2021
  • Mathematics
contestada

Use completing the square to solve x^2+6x=13

Use completing the square to solve x26x13 class=

Respuesta :

allisonthekaraoz0uwu
allisonthekaraoz0uwu allisonthekaraoz0uwu
  • 03-07-2021

Answer:

x = -3 +/- square root(22)

Step-by-step explanation:

x = -b +/- square root(b^2 - 4ac) / 2a

ax^2 + bx + c = 0

these are both the quadratic formula but one is solved for the x and another for 0

a= 1

b= 6

c = -13

x= -6 +/- square root( 6^2 - 4(1)(13)) / 2(1)

x = -6 +/- sqrt( 36 + 52) / 2

x= -6 +/- sqrt (88) / 2

sqrt of 88 = 2 x sqrt (22)

divide 2 on each

x= -3 +/- sqrt (22)

Answer Link

Otras preguntas

which point lies on the graph of the boundary line of the inequality 3y + 4x< 12
if a sample of magnesium has a mass of 60 g, how many moles of magnesium does the sample contain
what's the square root of 135
Rheumatic fever is a bacterial disease that can result in degeneration of heart valves that would cause?
How do I factor 2y^2 - y - 10
reason for adopting democracy in Libya,Egypt,Nepal and Bhutan?
what is the fraction ten twelfths in it's simplest form ?
WHAT IS 123456567890*1423 THAT MEANS TO DIVIED PLEASE TELL ME THE ANSWER
how do you multiply and divide equations?
A uniform wire is cut into 4 segments. Each segment is twice as long as the earlier segment. If the shortest segment has a resistance of 4 ohm, find the resista