(3-4i)(7+2i)=

Simple and best practice solution for (3-4i)(7+2i)= 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 (3-4i)(7+2i)= equation:


Simplifying
(3 + -4i)(7 + 2i) = 0

Multiply (3 + -4i) * (7 + 2i)
(3(7 + 2i) + -4i * (7 + 2i)) = 0
((7 * 3 + 2i * 3) + -4i * (7 + 2i)) = 0
((21 + 6i) + -4i * (7 + 2i)) = 0
(21 + 6i + (7 * -4i + 2i * -4i)) = 0
(21 + 6i + (-28i + -8i2)) = 0

Combine like terms: 6i + -28i = -22i
(21 + -22i + -8i2) = 0

Solving
21 + -22i + -8i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(3 + -4i)(7 + 2i) = 0

Subproblem 1

Set the factor '(3 + -4i)' equal to zero and attempt to solve: Simplifying 3 + -4i = 0 Solving 3 + -4i = 0 Move all terms containing i to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4i = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4i = 0 + -3 -4i = 0 + -3 Combine like terms: 0 + -3 = -3 -4i = -3 Divide each side by '-4'. i = 0.75 Simplifying i = 0.75

Subproblem 2

Set the factor '(7 + 2i)' equal to zero and attempt to solve: Simplifying 7 + 2i = 0 Solving 7 + 2i = 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 + 2i = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2i = 0 + -7 2i = 0 + -7 Combine like terms: 0 + -7 = -7 2i = -7 Divide each side by '2'. i = -3.5 Simplifying i = -3.5

Solution

i = {0.75, -3.5}

See similar equations:

| -4(-10x-6)-9(-2x+7)= | | -7+17=x+3 | | 62-7x=11x+24 | | 8-9x=35-16 | | y=5x+7(x-2) | | -4*4+6y=24 | | -35-2=7-8x | | -4*6+y=-24 | | 66-6x=7x+23 | | 3x+11=46-2 | | 21.8x=-3.5 | | 2-3x(x^2+2x-3)=11(x^2+2x-3) | | p+30.34=-124.26 | | -4*4+6y=-24 | | 3x+5(2x-5)=-4(2x-5) | | 3x+5(2x-5)=4(2x-5) | | 3ab-2b^2-6a+4b=0 | | 3(x-4)+47=-2x | | 5*-3-2x=-3 | | ln(x^2+6x+8)-ln(x+4)=0 | | 2x-3*0=8 | | 6x+5=8x-13 | | 7x+9=76 | | 2x-3=3x-20 | | x^2-9y^2=1 | | 1-5x(3x^2-4x)+2=4-4x(3x^2-4x)+2 | | -343=6m+7(1-8m) | | 7+25lnX=2 | | 5w-8(w-4)=6(w-9) | | 0.05x+0.01= | | 6x+2(3-x)=1 | | 4x+3-2x=5isa |

Equations solver categories