miabarrett1964 miabarrett1964
  • 24-10-2018
  • Mathematics
contestada

Factor the expression over the complex numbers.


y^2+49

Respuesta :

gmany
gmany gmany
  • 28-10-2018

[tex]\text{Use}\\\\a^2-b^2=(a-b)(a+b)\\\\i=\sqrt{-1}\to i^2=-1\\---------------------\\\\y^2+49=y^2+7^2=y^2-(-1)(7^2)=y^2-(i^2)(7^2)=y^2-(7i)^2\\\\\boxed{y^2+49=(y-7i)(y+7i)}[/tex]

Answer Link

Otras preguntas

how did congress try to settle  the slavery issue in 1850?
Identify two powers the US Constitution prohibits the states from having.
find the cube root of 740
which  property should be used next in this solution process 3x+2+3=7(x-1)-4
which property is (3+5) times 6 = 3 + (5 times 6)
how did congress try to settle  the slavery issue in 1850?
How do you do this problem 272 divided by 64
(10x^6 + 8x^4) / 2x^2
what does slippered pantaloons means in the seven ages of man for william shakespeare
write the equation a. a vertical line that passes through the point (2,-6)b. the y axis c.  a horizontal line that passes through the point (1,4)d. the x axis