(7-4i)(2+i)=

Simple and best practice solution for (7-4i)(2+i)= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (7-4i)(2+i)= equation:


Simplifying
(7 + -4i)(2 + i) = 0

Multiply (7 + -4i) * (2 + i)
(7(2 + i) + -4i * (2 + i)) = 0
((2 * 7 + i * 7) + -4i * (2 + i)) = 0
((14 + 7i) + -4i * (2 + i)) = 0
(14 + 7i + (2 * -4i + i * -4i)) = 0
(14 + 7i + (-8i + -4i2)) = 0

Combine like terms: 7i + -8i = -1i
(14 + -1i + -4i2) = 0

Solving
14 + -1i + -4i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(7 + -4i)(2 + i) = 0

Subproblem 1

Set the factor '(7 + -4i)' equal to zero and attempt to solve: Simplifying 7 + -4i = 0 Solving 7 + -4i = 0 Move all terms containing i to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -4i = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -4i = 0 + -7 -4i = 0 + -7 Combine like terms: 0 + -7 = -7 -4i = -7 Divide each side by '-4'. i = 1.75 Simplifying i = 1.75

Subproblem 2

Set the factor '(2 + i)' equal to zero and attempt to solve: Simplifying 2 + i = 0 Solving 2 + i = 0 Move all terms containing i to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + i = 0 + -2 i = 0 + -2 Combine like terms: 0 + -2 = -2 i = -2 Simplifying i = -2

Solution

i = {1.75, -2}

See similar equations:

| 7=3x+16 | | -16t^2+32t+12=0 | | 18x-(-6x)+49-(-31)-7x= | | 9e^10(x)=45 | | 6-8p=2 | | 5a(2a-5)=0 | | -4.6(2x-5)+7=2(5x+9) | | 3ln(x)=0 | | 3x=-4+2 | | (X-8)+(9X-327)+(4X-71)=180 | | 10-3(x+6)+5x=4 | | -54=-18s | | 4y-4x=36 | | 3x+17=2(4x+3) | | x-2(5x)=22 | | F=8.5+4(0.025-0.044) | | -2(7v+6)-2v=12+8v | | 4x-3=12x-9.8 | | 4(5x+8)=92 | | 2(-2-2y)+3y=0 | | -4(2y-1)-2(2y)=2 | | =-3(x-6)-2(-7x-5) | | V-3x+2y=17 | | 3(n+5)=18 | | y-1/3=8/3 | | 9-4n+2n=26-67 | | d/4-9=3 | | x*(x+1)=5 | | 150=85p-2 | | 4(3b-6)=9(2b+8) | | 3x-5y=-34 | | 90=5(x+8)+5x+10 |

Equations solver categories