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

A cafeteria measures 40 feet by 60 feet. Which is the correct unit of measurement to figure out how much tile is needed to cover the cafeteria floor? A.ft B.ft
Help with homework. Thanks
The critical period is a special time of development in humans. True or False
There are two distinct perspectives being presented in this excerpt. What are they?that of a gulag administrator and that of a gulag guardthat of a visitor to t
math please help: 3x-7+9=
what is the greatest possible distance from austin to San Antonio? How did you find the answer
Fill in the black. In the triangle below , x=_ . Round your answer to two decimal places.
Given that line a is parallel to line b and that line c is parallel to line d, if angle 13=(12x-22) and angle 14=(9x-29), find angle 2
Please help me I can't seem to get this one right Line AB contains points A(2, −4) and B(3, 1). Line EF is perpendicular to line AB. Which two points lie on lin
Members of the Texas legislature rely heavily on their staff