Question

(i) Subtract ab – bc - ca from – ab + bc + ca.​

Answer 1

-ab+bc+ca-(ab-bc-ca)

-ab+bc+ca-ab+bc+ca

-ab-ab+bc+bc+ca+ca

-2ab+2bc+2ca

=2(a+b+c)

pls mark me as the brainliest if this answer is useful.

Answer 2

= (-ab +bc +ca) - (ab-bc-ca)

= -ab +bc +ca -ab +bc +ca

= -ab -ab +bc +bc +ca +ca

= -ab to the power square +bc to the power square +ca to the power square

hope it will help you