हल करना (x)^(2)-23(x)^(2)+142\times-120= | Equatix - Math Solver

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

a⋅(b-2)=3b

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

a⋅(b-2)=3b

Question

$${ x }^{ 2 } -23 { x }^{ 2 } +142 \times -120=$$