Expanda e simplifique as expressões algébricas.
(a) 3(x + 6) + 4(2x - 5)
(d) (2 x + 3)^2
(g) (3 - 2x)^(2) * (2 - 3x)
(b) (raiz(a) + raiz(b)) * (raiz(a) - raiz(b))
(e) (x + raiz(3))^2
© (x+3)(4x-5)
(f) (x-2)^3
(h) (x + 2y - 5)²

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