06-06-2017
Mathematics

contestada

(3 - c 2 d)(4 - 4c 2 d)

Respuesta :

06-06-2017

(3 - c^2d)(4 - 4c^2d)
12 - 12c^2d - 4c^2d + 4c^4d^2

12 - 16c^2d + 4c^4d^2

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ReinaInoue ReinaInoue

06-06-2017

Expanding brackets

(3-c²d) (4-4c²d)

3 times 4 = 12
3 times - 4c²d = -12c²d
c²d times 4 = 4c²d
c²d times - 4c²d = -4c⁴d²

SO THEREFORE

12 - 12c²d - 4c²d + 4c⁴d²
= 12 - 16c²d + 4c⁴d²

Answer Link

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