हल करना (- c ^ 2 + 5c) + (- 4c ^ 2 + 8c) = | 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

$$(-c^{2}+5c)+(-4c^{2}+8c)=$$