Question

$add \: the \: following.$
$1. \: \: (ab - bc) + (bc - ca) + (ca - bc)$

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Answer 1

Answer:

ab-bc+bc-ca+ca-bc

ca and -ca gets cancelled

bc and-bc gets cancelled and there is another -bc

so answer is ab-bc

take b as common

b(a-c)

Step-by-step explanation:

I hope u understand

in addition there is no change In sign

but if u subtract the + becomes - and - become as +

Answer 2

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

ab-bc+bc-ca+ca-bc

ab-bc

b(a-c)

{[-bc+bc-ca+ca]cancel }

hope it will help uh