jak się liczy takie coc są jakieś wzory? (x+1)^4
wg wzoru:
(a+b)⁴ = a⁴+4a³b+6a²b³+4ab²+b⁴
(x+1)⁴ = x⁴+4x³·1+6x²·1³+4x·1²+1⁴ = x⁴+4x³+6x²+4x+1
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wg wzoru:
(a+b)⁴ = a⁴+4a³b+6a²b³+4ab²+b⁴
(x+1)⁴ = x⁴+4x³·1+6x²·1³+4x·1²+1⁴ = x⁴+4x³+6x²+4x+1