(4-9i)(7-9i)=

Simple and best practice solution for (4-9i)(7-9i)= 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 (4-9i)(7-9i)= equation: 


Simplifying
(4 + -9i)(7 + -9i) = 0

Multiply (4 + -9i) * (7 + -9i)
(4(7 + -9i) + -9i * (7 + -9i)) = 0
((7 * 4 + -9i * 4) + -9i * (7 + -9i)) = 0
((28 + -36i) + -9i * (7 + -9i)) = 0
(28 + -36i + (7 * -9i + -9i * -9i)) = 0
(28 + -36i + (-63i + 81i2)) = 0

Combine like terms: -36i + -63i = -99i
(28 + -99i + 81i2) = 0

Solving
28 + -99i + 81i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(4 + -9i)(7 + -9i) = 0


Subproblem 1
Set the factor '(4 + -9i)' equal to zero and attempt to solve:

Simplifying
4 + -9i = 0

Solving
4 + -9i = 0

Move all terms containing i to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + -9i = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -9i = 0 + -4
-9i = 0 + -4

Combine like terms: 0 + -4 = -4
-9i = -4

Divide each side by '-9'.
i = 0.4444444444

Simplifying
i = 0.4444444444

Subproblem 2
Set the factor '(7 + -9i)' equal to zero and attempt to solve:

Simplifying
7 + -9i = 0

Solving
7 + -9i = 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 + -9i = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -9i = 0 + -7
-9i = 0 + -7

Combine like terms: 0 + -7 = -7
-9i = -7

Divide each side by '-9'.
i = 0.7777777778

Simplifying
i = 0.7777777778
Solution
i = {0.4444444444, 0.7777777778}

See similar equations:

| 14k+13=20 | | 4(c-2)=3(x-3) | | 4k+13=13 | | -133-2x=119-11x | | 7(m-4)=-29+7m | | z=(6+x)k | | -8(y+4)=6-7y | | n-20=n*6+15 | | 2x(2x+1)=3 | | mn-2n+7m-14= | | 3x-6=2x+17 | | 81x-100y^4=0 | | 24x^2-8x^2= | | 7(x+3)+5=-6(x-1) | | -(8x-3)-(3x-5)+11=-9(x-1)-(7x+8)+3 | | 8+4y=4 | | -2(4-3x)6x=10 | | 6(x-7)+6=3(x-6) | | 3x-17=5+2x | | -6(5-x)+1=3(x+2) | | 11x-3=5x+21 | | 0.16-0.01(x+2)=0.03(2-x) | | 4(n-12)=12(n-4) | | 125+m=725 | | 35=-2x-25 | | 4(n-12)=12(4-n) | | -4/5=-1/4-5/6q | | (9x-4)(5x+5)= | | X^2-8=9x | | -7(-4-4x)-6=1+7x | | 3(x-7)-4(2+x)=3 | | -5qx+6qx(5x-6)-65qx=-66 |

Equations solver categories