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*√10 = √90 = √10·9 = 3√10
b) *∛2 = ∛128
*∛2 = ∛128 = ∛64·2 = 4∛2
c) *√2 = √98
*√2 = √98 = √49·2 = 7√2
d) *∛2 = ∛128 *∛2 = ∛128 = ∛64·2 = 4∛2
e) 4√12 = *√3
*√3 = 4√12 = 4√4·3 = 4 · 2√3 = 8√3
f) *∛2 = 2∛16
*∛2 = 2∛16 = 2∛8·2 = 2 · 2∛2 = 4∛2
g) √75 - √108 = *√3
√75 - √108 = √25·3 - √36·3 = 5√3 - 6√3 = -√3
h) ∛40 - ∛* = -∛5
∛8·5 - ∛* = -∛5
2∛5 - ∛* = -∛5
2∛5 + ∛5 = ∛*
∛* = 3∛5