UPSKILL MATH PLUS

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Identify the errors and correct them.
 
(i) 7y^2 - y^2 + 3y^2 = 10y^2
 
Correct answer: 7y^2 - y^2 + 3y^2 = iii
 
(ii) 6xy + 3xy = 9x^2y^2
 
Correct answer: 6xy + 3xy = iii
 
(iii) m(4m - 3) = 4m^2 - 3
 
Correct answer: m(4m - 3) = iiiii
 
(Note: Enter the number followed by the variable and then its exponents.)