Question

2x² + y² = 18
xy = 4​

Answer 1

See the "step by step explanation" for better understanding.

Explanation:

Let's solve for x.

2x2+y2=18

Step 1: Add -y^2 to both sides.

2x2+y2+−y2=18+−y2

2x2=−y2+18

Step 2: Divide both sides by 2.

2x22=−y2+182

x2=−12y2+9

Step 3: Take square root.

x=√−12y2+9 or x=−√−12y2+9

Answer:

x=√−12y2+9 or x=−√−12y2+9