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if x.y=30 and x+y=10.3 what is x ?

if x.y=30 and x+y=10.3, what is x? i been told by my teacher to use quadratic formula , and him and i did it , we end up having , x1=-5.15-5.89i and x2=-5.15+5.89i, y1=30/(-5.15-5.89i) and y2=30/(-5.15+5.89i).and he told to go from there, but i cant get f...

x=(-5.15-5.89i).(30/(-5.15-5.89i)) i is the suare root of (-1) what is x. please help me , i cant figure it out. thank you.

x=(-5.15-5.89i)+(30/(-5.15-5.89i)) i is the square root of (-1) the answer sholud equal 10.3 x=10.3 but could you show me how , i am having problem to figure it out. thank you.

x.y=30 and x+y=10.3, I end up with x=(21.83+60.66i)/(-5.15-5.89i). i is the square root of (-1). could you please show me how this equation will = 10.3 I am having problem to figure it out. thank you.

how can you tell the easiest way if something is a chemical change or physical change.

x.y=30 and x+y=10.3 ,what is x & Y. final answer is x=5.15+1.86i and y=5.15-186i, this way is by try and error (logic). but can somebody please show me how you do it by aljebra, please, thank you.

x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (-1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.

my Teacher gave this problem

if my teacher expects complex roots, what will be the final answer if i add x+y = 10.3 = ?? thank you

just in general, how could you tell?

that is the problem i cant solve it because i will end up with square root of -13.91. please solve this equation for me.

very good, but when i want to proove it by x + y =10.3, x=30/(5.15+1.84i), y=(5.15+1.84i) how you drive this equation 30/(5.15+1.84i)+(5.15+1.84i)=10.3 thank you

very good, but when i want to proove it by x + y =10.3, x=30/(5.15+1.84i), y=(5.15+1.84i) how you drive this equation 30/(5.15+1.84i)+(5.15+1.84i)=10.3 thank you

A is wrong tho

whats the right answer then