" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2. 25p²-16q²= (5p-4q)(5p+4q)
3. 3p²-12 = (3p-6)(p+2)
4. 1-x²= (1-x)(1+x)
5. 49 - y² = (7+y)(7-y)