Question

Solve the system of equations. (Enter your answers from smallest to largest value of the imaginary part of x. Enter NONE in any unused answer blanks.)
x + y = 16
xy = 68

Answer 1

First, in one of the equations, isolate either x or y.

Answer 2

Then, plug in the isolated variable into the other equation, solve for the other variable.

Answer 3

i tried this and it isnt looking right.. i dont know what i am doing wrong

Answer 4

Can you tell me what you've done so far?

Answer 5

x + y = 16
xy = 68

Let's work with equation 1:
x = 16 - y

Now that we have one variable isolated, use this in the other equation.
xy = 68
(16 - y)y = 68
16y - y^2 = 68

Solve for y.

After you solve for y, plug y back into your isolated x:
x = 16 - y

Now you should have x and y.

Answer 6

ok let me work on it.

Answer 7

i know its a simple problem but i keep getting the wrong answer

Answer 8

Do you have answer choices?

Answer 9

nop

Answer 10

so can you help me?

Answer 11

What was your answer?

Answer 12

for y= 8+- 2i

Answer 13

then I inserted this in x... and I dont know if I am solving it wrong... but I got... -44

Answer 14

y = 8 - 2i is correct
for x you should get x = 8 + 2i

Answer 15

ok so I was multiplying.. i dont even know how I got that... ok so, for x2... do u get that when u do the negative form of y?

Answer 16

yes, i just saw that

Answer 17

i understand

Answer 18

thank you!

Answer 19

you forgot to divide 4i by 2

Answer 20

yw =)

Answer 21

that paper was my first round, i went at it three rounds.. when i get tired, i dont process math well

Answer 22

i wrote it down. my typing skills is really bad and it would take me years to finish typing lol.. =]

Answer 23

i understood perfectly, thank u