Mathematics, 04.07.2019 08:30 pcartei
Correct answers only ! i cannot retake factor the expression completely over the complex numbers. x^4 − 625
Answers: 1
![\text{Use}\\\\a^2-b^2=(a-b)(a+b)\\\\i=\sqrt{-1}\to i^2=-1\\---------------------\\\\x^4-625=(x^2)^2-25^2=(x^2-25)(x^2+25)\\\\=(x^2-5^2)(x^2+5^2)=(x-5)(x+5)[x^2-(-1)(5^2)]\\\\=(x-5)(x+5)[x^2-(i^2)(5^2)]=(x-5)(x+5)[x^2-(5i)^2]\\\\=(x-5)(x+5)(x-5i)(x+5i)](/tpl/images/0049/5963/9742a.png)
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:00, jacobbrandon2002
What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )
Answers: 1
Mathematics, 21.06.2019 21:30, carolyn7938
(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0
Answers: 1
You know the right answer?
Correct answers only ! i cannot retake factor the expression completely over the complex numbers....
Questions in other subjects:
Computers and Technology, 23.10.2021 19:20
Social Studies, 23.10.2021 19:20
Chemistry, 23.10.2021 19:20
