Question

a) x2 + y² = 4 and x + y = 2​

Answer 1

Step-by-step explanation:

x2 + y² = 4

Let's solve for x.

→$x^2+y^2=4$

Step 1: Add -y^2 to both sides

$x^2+y^2+−y^2=4+−y2$

$x^2=−y^2+4$

Step 2: Take square root.

$x=√−y^2+4 or x=−√−y^2+4$

Answer:

$x=√−y^2+4 or x=−√−y^2+4$

x + y = 2

Let's solve for x.

$x+y=2$

Step 1: Add -y to both sides.

$x+y+−y=2+−y$

$x=−y+2$

Answer:

$x=−y+2$