Precalculus Examples

$y - x^{2} + 1$ , $y - x + 3$

Step 1

Add $y$ and $y$ .

$2 y - x^{2} + 1 - x + 3$

Step 2

Add $1$ and $3$ .

$2 y - x^{2} - x + 4$

Step 3

Since there are no common prime factors, the GCF is $1$ .

$1$