हल करना (4)^(2)+(5)^(2)+()^(2)=21 | 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

$${ 4 }^{ 2 } + { 5 }^{ 2 } + { \left( \right) }^{ 2 } =21$$