Answer:
Step-by-step explanation:
We are given that two complex numbers
We have to find the product of two complex numbers
()
Multiply the first equation by 5
20x -15y = -200
multiply the second equation by 3
27x +15y =12
add the 2 new equations
20x-15y +27x +15y = -200 +12
47x = -188 (devide each side by 47)
x = -4
substitute x with -4 in any equation you like (I'll choose the second)
9*(-4) +5y =4
-36+5y=4 (add 36 to each side)
5y= 40
y= 8
3/5x + 5 = 4/5
3/5x + 5 (-5) = 4/5 (-5)
3/5x = -4 1/5
3/5x/(5/3) = -4 1/5(/)(5/3)
x = (- 21/5)/ (5/3)
x = -21/5 x (3/5) (flip the signs by flipping the second fraction and the divide to a multiply)
x = -21/5 x 3/5
x = -63/25 or x = - 2.52
hope this helps
Answer:
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Step-by-step explanation: