Answer:
a). 5√6
3 + 8x
Step-by-step explanation:
54
4 x 5 = 20
20 + 34 = 54
2n^{2} +2n
INSERT
Step-by-step explanation:first you want to move the negative which is negative 1 into the set of parenthesis and then Foil the two parenthesis together and the combine like terms