Question

Write x2 in isolated
form.
X^2 + (y + 1)^2 = 20

Answer 1

Answer:

$x^{2}=-y^2-2y+19$

Step-by-step explanation:

we  have

$x^{2} +(y+1)^2=20$

Isolate the variable x^2

Subtract (y+1)^2 both sides

$x^{2}=20-(y+1)^2$

$x^{2}=20-(y^2+2y+1)$

$x^{2}=20-y^2-2y-1$

$x^{2}=-y^2-2y+19$