Which of these expressions CANNOT be simplified by combining like terms? CLEAR CHECK 6fg3+4−4f2g2+f3g−12 6fg3+2f(2fg)+4f2g−10 6fg3+5f2g2+f3g−7 6f3g3+7f2g2+4f3g3−10fg
Mathematics · Middle School · Thu Feb 04 2021
Answered on
Which of these expressions CANNOT be simplified by combining like terms?
Expressions are:-
(i)6fg3+4−4f2g2+f3g−12
(ii) 6fg3+2f(2fg)+4f2g−10
(iii) 6fg3+5f2g2+f3g−7
(iv)6f3g3+7f2g2+4f3g3−10fg
Expression (iii) not simplified by combining like terms because there is not a single term to combine or add .
Expression (i) 6fg3+4−4f2g2+f3g−12 here we have like terms 4 and -12 so, now this expression can be simplified and written as 6fg3−4f2g2+f3g−8
Expression (ii) 6fg3+2f(2fg)+4f2g−10 here we have like terms 2f(fg) =2f2g and 4f2g so, now this expression can be simplified and written as 6fg3+4f2g−10
Expression (iv) 6f3g3+7f2g2+4f3g3−10fg here we have like terms 6f3g3 and 4f3g3 so, now this expression can be simplified and written as 10f3g3+7f2g2-10fg