MATHEMATICS HIGH SCHOOL

How to solve using perfect square
x^2-4x-32=0

Answers

Answer 1
Answer: Perfect\ square:(a-b)^2=a^2-2ab+b^2\n\nx^2-4x-32=0\ \ \ \ |add\ 32\ to\ both\ sides\n\nx^2-4x=32\n\nx^2-2x\cdot2=32\ \ \ \ |add\ 2^2\ to\ both\ sides\n\nx^2-2x\cdot2+2^2=32+2^2\n\n(x-2)^2=32+4\n\n(x-2)^2=36\iff x-2=-√(36)\ or\ x-2=√(36)\n\nx-2=-6\ or\ x-2=6\ \ \ \ |add\ 2\ to\ both\ sides\n\n\boxed{x=-4\ or\ x=8}

Related Questions

Find the measure of the missing angle
Simplify this expression: 19 – (–8) – (–14) = ? A. 41 B. –7 C. –3 D. 25
F(x) = ²log(3x +2) F'(x) = ....?
Scientific notation 2/10=?and 12 thousandth =? show the work.
Katherine has $140 in the bank and is saving $6 per week. Abbie has $462 in the bank, but is spending at a rate of $10 per week. Which equation will determine when they will have the same amount of money in the bank?

Which of the following most closely rounds to the number 1

Answers

Answer:

1.1???????

Step-by-step explanation:

Answer:Its most likely to be D

Step-by-step explanation:

Find the equation of the line that contains the point ( - 1. - 4) and is parallel to the line 2x + 3y = 5

Answers

Answer:

Answer: 2x+3y=-14

Y needs to be changed in order to maintain parallelism

Good luck!

Helloo it's due today help need answers idk

Answers

be polite and maybe people will help u!

Answer:

don't listen to them i have been going through question today like 50 and speeding so i can talk to my true love but  i want to help you

Step-by-step explanation:

Google soup is perfect and look up each question and if you have to look up answer key on the specific paper im busy with classes of my own sorry i couldn't help you all the way

Simplifying rational expressions1. (c+8)(c-8)/(c-8)(c+3)
2. n^2+4n-12/n^2+2n-8
3. 42x^2y^3/28x^3y
4. m^2-3m-10/m-5

Answers

1. ((c + 8)(c - 8))/((c - 8)(c + 3)),
    (c + 8)/(c + 3)

2. (n^(2) + 4n - 12)/(n^(2) + 2n - 8),
    (n^(2) + 6n - 2n - 12)/(n^(2) + 4n - 2n - 8),
    (n(n) + n(6) - 2(n) - 2(6))/(n(n) + n(4) - 2(n) - 2(4)),
    (n(n + 6) - 2(n + 6))/(n(n + 4) - 2(n + 4)),
    ((n - 2)(n + 6))/((n - 2)(n + 4)),
    (n + 6)/(n + 4)

3. (42x^(2)y^(3))/(28x^(3)y),
    (3y^(2))/(2x)

4. (m^(2) - 3m - 10)/(m - 5),
    (m^(2) - 5m + 2m - 10)/(m - 5),
    (m(m) - m(5) + 2(m) - 2(5))/(m - 5),
    (m(m - 5) + 2(m - 5))/(m - 5),
    ((m + 2)(m - 5))/(m - 5),
    m + 2

How many hours between 8:15 to 12:45 ?

Answers

4.5
an hour to 9:15
one to 10
one to 11
one to 12
and .5 to 1215 to 1245
Subtract:

12h   45' -
08h   15'
-----------
04h   30'

The estimated snowfall for a local city is 6.75 inches. The actual snowfall was 10.25 inches. What is the percent error for the amount of snowfall

Answers

Answer: ~ 34.15%

Step-by-step explanation:

To calculate the percent error for the amount of snowfall, you can use the following formula:

Percent Error = [(|Estimated Value - Actual Value|) / Actual Value] * 100%

In this case, the estimated snowfall is 6.75 inches, and the actual snowfall is 10.25 inches. Plugging these values into the formula:

Percent Error = [(|6.75 - 10.25|) / 10.25] * 100%

Percent Error = [(3.5) / 10.25] * 100%

Percent Error ≈ 34.15%

So, the percent error for the amount of snowfall is approximately 34.15%. This means that the estimated snowfall was about 34.15% lower than the actual snowfall.
Other Questions
125 invitations to 75 invitation
Given: x - 5 > -2. Choose the solution set. {x | x R, x > -7} {x | x R, x > -3} {x | x R, x > 3} {x | x R, x > 7}
Write a numerical example of how multiplication and division by the same number undo each otherPlease help
PLEASE HELP ASAP 25 POINTS