destinysimpsonpa7sd5 destinysimpsonpa7sd5
  • 12-06-2018
  • Mathematics
contestada

which expression is equivalent to (2-5i)(1+3i)-(10-4i)

Respuesta :

gmany
gmany gmany
  • 13-06-2018
[tex]i=\sqrt{-1}\to i^2=-1[/tex]

[tex](2-5i)(1+3i)-(10-4i)\\\\=(2)(1)+(2)(3i)-(5i)(1)-(5i)(3i)-10+4i\\\\=2+6i-5i-15i^2-10+4i\\\\=-8-(15)(-1)+5i\\\\=-8+15+5i\\\\=7+5i[/tex]
Answer Link

Otras preguntas

Should the federal government have more power to require greater uniformity in policy among the states
In 1950s, what discovering revolutionized biotechnology
Solve sin θ = 0.95 for -90º ≤ θ ≤ 90º
After the Civil War, Congress reacted to rising violence against African Americans by giving more money to the Freedmen’s Bureau. offering more education to Sou
Someone please help me?
what was initiated after harry truman dropped the atomic bomb?
Which is the solution to the equation 3.5(2h+4.5)=57.75? Round to the nearest tenth if necessaryA.6B.7.6C.8.9D.10
these are all produced by the ____ and sent to the ____. A. moon, sunB. sun, earthC. earth, moonD. moon, earth.
French Revolution upper classes
When writing a standard number in scientific notation, the first factor must have a value greater than or equal to 1 and less than?