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√ -3+7
√ 4
2
b) ³√ 1-□ = -2
³√ 1-9 = -2
³√ -8 = -2
³√( -2)^3 = -2
-2 = -2
c) √ 2.□-1 = 3
√ 2.5-1 = 3
√ 10-1 = 3
√ 9 = 3
d) ³√ -□-5² = -3
³√ -2-5² = -3
³√ -2-25 = -3
³√ -27 = -3
³√ (-3)^3 = -3
3 = 3
e) √ 1-3.□ =4
√ 1-3.(-5)=4
√ 1+15 =4
√ 16 = 4
4 = 4
f) ⁵√ -7²-□ = -2
⁵√ -7²-(-17) = -2
⁵√ -49+17 = -2
⁵√ -32 = -2
⁵√ (-2)^5 = -2
2 = 2