Question

b. Multiply: (3x3-2x+1) by (2x+3)​

Answer 1

Step-by-step explanation:

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Answer 2

$\purple{\underbrace{\underline{QUESTION}}}$

$\bullet$ $Multiply\: : \: ( 3 × 3 - 2x + 1 ) \: and \: ( 2x + 3 )$

$\blue{\underbrace{\underline{ANSWER}}}$

$\implies$ ( 3 × 3 - 2x + 1 ) × ( 2x + 3 )

$\implies$ ( 9 - 2x + 1 ) × ( 2x + 3 )

$\implies$ 9 ( 2x + 3 ) - 2x ( 2x + 3 ) + 1 ( 2x + 3 )

$\implies$ 18x + 27 - 4x² - 6x + 2x + 3

$\implies$ - 4x² + 18x - 4x + 27 + 3

$\implies$ - 4x² + 14x + 30

$\boxed{\bf{\red{ANSWER}}}$

$\boxed{\boxed{again\:,\:but\:not\: important}}$

$By\:midterm\: splitting$

$\implies$ - 4x² + 14x + 30

$\implies$ - 4x² + ( 20 - 6 ) x + 30

$\implies$ - 4x² + 20x - 6x + 30

$\implies$ - 4x ( x - 5 ) - 6 ( x - 5 )

$\implies$ ( x - 5 ) ( - 4x - 6 )

$\boxed{\bf{\green{its\:not\: mandatory}}}$