$MathMaster logo$

MathMaster

Home
general
can you find the solution s to these quadratic equations x2 2x 2

Question

Can you find the solution/s to these quadratic equations? x2 - 2x + 2

269

likes

1347 views

Answer to a math question Can you find the solution/s to these quadratic equations? x2 - 2x + 2

$Expert avatar$

4.5

108 Answers

${x}_{1,2}=\frac{-(-2)\pm \sqrt{(-2)^{2}-4\cdot 1\cdot 2}}{2\cdot 1}$

${x}_{1,2}=\frac{-(-2)\pm 2i}{2\cdot 1}$

${x}_{1}=\frac{-(-2)+2i}{2\cdot 1},{x}_{2}=\frac{-(-2)-2i}{2\cdot 1}$

$=1+i$

$=1-i$

$x=1+i,1-i$

Frequently asked questions (FAQs)

How many ways can 6 friends sit around a circular table?

+

Question: Given the constant function f(x) = c, where c is a fixed value, determine the value of c if f(3) = 7.

+

What is the simplified form of the mixed number 3 2/5 + 2 4/7?

+

New questions in Mathematics

Find an arc length parameterization of the curve that has the same orientation as the given curve and for which the reference point corresponds to t=0. Use an arc length s as a parameter. r(t) = 3(e^t) cos (t)i + 3(e^t)sin(t)j; 0<=t<=(3.14/2)

If we have the sequence: 3, 6, 12, 24 Please determine the 14th term.

How many percent is one second out a 24 hour?

Supposed 60% of the register voters in a country or democrat. If a sample of 793 voters is selected, what is the probability that the sample proportion of Democrats will be greater than 64% round your answer to four decimal places

Which of the methods below can be used to workout 95% of an amount? a. Dividing the amount 100 and multiply by 95 b. Working out 5% of the amount and taking it away from the full amount c. Dividing 95 by 100 and multiplying the answer by the amount d. Dividing the amount by 95 and then multiply by 100

A machine produces 255 bolts in 24 minutes. At the same rate, how many bolts would be produced in 40 minutes?

A company made 150,000 in the first year 145,000 in the second 140,000 in the third year successively during the first decade of this company's existence it made a total of

Let X be a discrete random variable such that E(X)=3 and V(X)=5. Let 𝑌 = 2𝑋^2 − 3𝑋. Determine E(Y).

Determine the kinetic energy of a baseball whose mass is 100 grams and has a speed of 30 m/s.

7- A printing company found in its investigations that there were an average of 6 errors in 150-page prints. Based on this information, what is the probability of there being 48 errors in a 1200-page job?

Oi👋🏻 Toque em "Criar Nova Tarefa" para enviar seu problema de matemática. Um dos nossos especialistas começará a trabalhar nisso imediatamente!

The average weekly earnings in the leisure and hospitality industry group for a re‐ cent year was $273. A random sample of 40 workers showed weekly average ear‐ nings of $285 with the population standard deviation equal to 58. At the 0.05 level of significance can it be concluded that the mean differs from $273? Find a 95% con‐ fidence interval for the weekly earnings and show that it supports the results of the hypothesis test.

Calculate NPV, IRR and PAYBACK through a cash flow for a period of five years, with discount rate of: a) 10% b) 12% c) 15% initial annual cost $41,400,000

4m - 3t + 7 = 16

Define excel and why we use it?

g(x)=3(x+8). What is the value of g(12)

Suppose a car license plate consists of 2 letters and two digits of which the first cannot be zero. How many different plates can be engraved? consider only 26 letters and 10 digits draw an example of this.

Find the number of liters of water needed to reduce 9 liters of lotion. shave containing 50% alcohol to a lotion containing 30% alcohol.