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mario62 [17]
2 years ago
7

Multiply the polynomials.

Mathematics
2 answers:
alexgriva [62]2 years ago
8 0

Answer:

a. 12-16c²d+4c⁴d²

Step-by-step explanation:

{ \tt{(3 -  {c}^{2} d)(4 - 4 {c}^{2} d)}}

• Open bracket using distributive property:

= { \tt{(3 \times 4) + (3 \times  - 4 {c}^{2}d) + ( -  {c}^{2}d \times 4) + ( -  {c}^{2}  d \times  - 4 {c}^{2} d) }} \\  = { \tt{12 - 12 {c}^{2} d - 4 {c}^{2} d + 4 {c}^{4} {d}^{2}  }} \\ { \tt{ =  {4c}^{4}  {d}^{2}  - 16 {c}^{2}d + 12 }}

liberstina [14]2 years ago
4 0

Answer:

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

Step-by-step explanation:

(3 - 1c^2d)(4 - 4c^2d)

First, you rearrange the terms:

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

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

Distribute:

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

We want the constants to be on the left, in order to do that, you re-order the terms:

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

Distribute:

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

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

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

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