We have expanded and simplified some algebraic expressions below to their simplest forms.
(i) Check each of the simplifications and see if there is a mistake.
(ii) If there is a mistake, try to explain what could have gone wrong.
(iii) Then write the correct expression.
\(-2p (–5p + 4q)\)
\(= 3p – 4q\)
\(= –2p + 5p – 4q\)
\(= 3p – 4q\)
Answer:
(i) The simplification is .
(ii) The reason is .
(iii) \(-2p (–5p + 4q)\) \(=\) .
[Note: Enter the variables in alphabetical order.]