Question

5. Factorise


1.9a² + 4b2 + 16c2 + 12ab – 16bc – 24ca

2.25x2 + 16y2 + 4z2 – 40xy + 16yz – 20xz

solve this question​

Answer 1

1.(3a+2b-4c)²

2.(-5x+4y+2z)²

hope it helps you mate

Answer 2

Answer:

i hope you are satisfied with my solution