1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fed [463]
3 years ago
15

What are the solutions of x ^ 2 + 6x - 6 = 10 ? x = - 11 x = 1 x = - 11 x = - 1 x = - 8x = - 2 x = - 8x = 2

Mathematics
1 answer:
zmey [24]3 years ago
8 0

Answer:

x=-8 ,2

Step-by-step explanation:

x ^ 2 + 6x - 6 = 10

Add 6 to each side

x ^ 2 + 6x - 6+6 = 10+6

x ^ 2 + 6x  = 16

Complete the square  take the coefficient of the x terms, divide by 2 and square it.  Then add it to each side

6/2 =3  , 3^2 =9  

x ^ 2 + 6x +9 = 16+9

(x+3)^2 = 25

Take the square root of each side

sqrt((x+3)^2) = ±sqrt(25)

x+3= ±5

Make 2 equations

x+3 = 5    x+3 = -5

Subtract 3 from each side

x+3-3 =5-3             x+3-3 = -5-3

x =2                           x=-8

You might be interested in
Two group of scouts each have 120 members. If 1/3 of the first group and 1/4 of the second group elect to go on a field trip, ho
ValentinkaMS [17]
1/3 of 120 is 40
1/4 of 120 is 30

therefore, 10 more scouts in the first group elected to go on the trip
7 0
3 years ago
What is the hightest number that 9 and 27 both be divided into?
Elena L [17]
The highest number that both 9 and 27 can be multiplied into is 9. 9 can go into 9 one time, and 9 can go into 27 three times. 
9•1=9
9•3=27
(9, 18, 27 )=times
I hope I helped.
3 0
3 years ago
Read 2 more answers
The perimeter of a square is 4/5 what is its area
34kurt

Answer:

1/25

Step-by-step explanation:

square has 4 sides, if you add them all up you get 4/5.

1/5+1/5+1/5+1/5=4/5

so each side is 1/5

Area=length * width

A=1/5*1/5=1/25

3 0
2 years ago
Help me please please I beg
alexdok [17]

Answer:

cm

Step-by-step explanation:

if using centimeters to determine the perimeter then it's just cm.

If you're using centimeters to determine area it would be cm^2.

If you're using centimeters to determine volume it would be cm^3.

I hope this helps you. Have a blessed day.

:);)

7 0
2 years ago
Can anyone explain what Literal Equations are? PLZ.
melisa1 [442]

Answer:

A literal equation is an equation that consists of multiple variables or letters.

A linear equation is an equation that consists of one variable

Step-by-step explanation:

Literal EX:

a = 1/2h(a + b)

ax + b = c

u = ak/b

Linear EX:

5(3a + 8) = 12a

4a = 8

11(3a - 18) = 12a

4 0
3 years ago
Read 2 more answers
Other questions:
  • If u have 345 snakes and 100 escape 23 die and 200 u gave away how many do u have now?
    14·2 answers
  • The cost y (in dollars) to rent a camping tent is proportional to the number x of days that the tent is rented. It costs $56 to
    12·1 answer
  • If josh has 8 apples and gives 5 to his brother and his mother gives him 3 more apples how much apples does he have
    5·2 answers
  • Am not sure if I started this right, but it's probability, can someone check if I started right?
    13·1 answer
  • Compare and contrast 2d and 3d shapes
    8·2 answers
  • What is the solutuon to the eqation 1/2x+3=2/3x+1
    6·1 answer
  • Pls help I’m failing I’ll brainlest and add extra points ASAP help with both
    13·2 answers
  • Three different sets of objects contain 2, 3, and 14 objects, respectively. How
    11·2 answers
  • Write the least common multiple of the denominators in the equation
    13·1 answer
  • 5m + 6n; m = 2 and n = 4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!