Question

x^2 - 7x +9yi= y^2i + 20i-12 solve for x and y

Answer 1

Given: The correct equation is x^2 - 7x - 9yi = y^2i + 20i -12

To find: Solve for x and y

Solution:

• Let Z = x^2 - 7x - 9yi.

• Then Z(bar) = x^2 - 7x - 9yi

• Now we can compute it as:

           x^2 - 7x = -12

           x^2 - 7x+ 12 = 0

           x^2 - 3x - 4x + 12 = 0

• So x = 3 , 4

• We have given y^2i + 20i -12 =  (y^2 + 20)i - 12

• Now y^2 + 20 = 9y

            y^2 - 9y + 20 = 0

            ( y - 4) (y - 5) = 0

            y = 4, 5

So the total number of pairs are 4.

Answer:

           So the total pairs are 4. Value of x is 3 and 4 and value of y is 4 and 5.

Answer 2

Answer:

x=4 and x=3

y=4 and y=5

Step-by-step explanation:

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