Question

8) Fatore as expressões abaixo.

a) 2x

2 – 20x b) 3x

2 – 27

9) Desenvolva os produtos até sua forma irredutível.

a) (x + 3)

2 b) (4 – y)
2 c) (x + 2) . (x – 2)

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Answer 1

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8- A)

${\blue{2x2 - 20x}} \\ {\blue{4x - 20x}} \\{\blue{( 4 - 20)x}} \\ {\blue{ - 16x}}$

B-

${\blue{3x2 - 27}} \\ {\blue{6x - 27}} \\ {\blue{3(2x - 9)}}$

9- A)

${\purple{(x + 3)2}} \\ {\purple{2x + 3 \times 2}} \\ {\purple{2 x + 6}}$

B-

${\purple{(4 - y)2}} \\ {\purple{4 \times 2 - 2y}} \\ {\purple{8 - 2y}}$

C-

${\purple{(x + 2) \times (x - 2)}} \\ {\purple{x {}^{2} - 2 {}^{2} }} \\ {\purple{2 \times 2}} \\ {\purple{4}} \\ {\purple{x {}^{2} - 4}}$

${\purple{Keep \: loving / hating.}} \: {\blue{Oh \: yeah!}}$

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Signed: Lohany Queen of hell 彡★

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