1
Question
Subtract:
ab−bc−ca from −ab+bc+ca.
Subtract:
ab−bc−ca from −ab+bc+ca.
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Solution
We have to subtract ab−bc−ca from −ab+bc+ca.
So,
−ab+bc+ca−(ab−bc−ca)
=−ab+bc+ca−ab+bc+ca
=−ab−ab+bc+bc+ca+ca [On combining the like terms]
=−2ab+2bc+2ca
We have to subtract ab−bc−ca from −ab+bc+ca.
So,
−ab+bc+ca−(ab−bc−ca)
=−ab+bc+ca−ab+bc+ca
=−ab−ab+bc+bc+ca+ca [On combining the like terms]
=−2ab+2bc+2ca
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