II 1
III 2
Answer:
Step-by-step explanation:
Given that a student's work to distribute and simplify a radical is shown below.
Given
(-5√20+√3)*(2+√3)
The next step of distribution is
-5√60+2√3+√9 is done correctly.
Next step is
-40√5-20√15+2√3+3
I term = -10√20=-20√5
Correct answer is
Hence c) the student did not properly simplify all radicals
-3m - n
3m - n
-3m - 3n
3m - 3n