+0  
 
0
883
0
avatar+845 

ok so i did all of them apart from C

 

a: a+b = -3  ab+ 3.5

b. 4x^2 + 45 =0

i have checked my answers and they are all correct, please explain C and provide a reasoning for the answer as it would help me learn, thanks

 
 Apr 21, 2019

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