2 Answers

MariusUt · Answer 1 · 2022-05-27T01:08:03+0000

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(x +4) (x² + x - 2)

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standard form (ax³ + bx² + cx + d)

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#look pic for more details to understand, in my country his method name is crab claws

(x + 4) (x² + x - 2) =

x³ + x² - 2x + 4x² + 4x - 8 =

x³ + 5x² + 2x - 8

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Tiago Moutinho · Answer 2 · 2022-05-30T05:47:10+0000

Explanation:

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

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

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$\tt{ {x}^(3) + {x}^(2) - 2x + 4 {x}^(2) + 4x - 8}$

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$\tt{ {x}^(3) + {x}^(2) + 4 {x}^(2) - 2x + 4x - 8}$

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$\tt{ {x}^(3) + 5 {x}^(2) + 2x - 8}$

$\pink{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \tt{ {x}^( 3) + 5 {x}^(2) + 2x - 8}}}}}}$

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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