हल करना 7 ^ 2 - sqrt(361) + 21 ^ 3 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$7^{2}-\sqrt{361}+21^{3}$$