Which among the following is not a factor of 4 y y -3 -A- y 2-3 yB- 4 y2C- 4y-3D- 4 y

The correct option is B 4y^2 4y(y + 3) can be written as 4 × y × (y + 3) nbsp; = 4y × (y + 3) = 4(y + 3)× y = 4 × y(y + 3) nbsp; = 4 × (y^2+3y) =4y^2+ 12 ...

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Byju's Answer

Standard VIII

Mathematics

Factorization of Expressions in the Form of ax+by and a²-b² as a Product of Terms

Which among t...

Question

Which among the following is not a factor of $4 y (y + 3)$ ?

$y^{2}$ + 3 $y$

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4 $y^{2}$

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4( $y$ + 3)

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$4 y$

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Solution

The correct option is B
4 $y^{2}$

$4 y (y + 3)$ can be written as

$4 \times y \times (y + 3)$

$= 4 y \times (y + 3) = 4 (y + 3) \times y$
$= 4 \times y (y + 3)$
$= 4 \times (y^{2} + 3 y)$
$= 4 y^{2} + 12 y$

So, 4 $y^{2}$ is a term in the expansion of $4 y (y + 3)$ . It is not a factor.

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Q. Which of the following is a factor of the expression 2x + 4y?

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Which among the following is not a factor of 4y(y+3)?

The correct option is B 4y2 4y(y+3) can be written as 4×y×(y+3) =4y×(y+3)=4(y+3)×y =4×y(y+3) =4×(y2+3y) =4y2+12y So, 4y2 is a term in the expansion of 4y(y+3). It is not a factor.

Which among the following is not a factor of $4 y (y + 3)$ ?

The correct option is B
4 $y^{2}$

$4 y (y + 3)$ can be written as

$4 \times y \times (y + 3)$

$= 4 y \times (y + 3) = 4 (y + 3) \times y$
$= 4 \times y (y + 3)$
$= 4 \times (y^{2} + 3 y)$
$= 4 y^{2} + 12 y$

So, 4 $y^{2}$ is a term in the expansion of $4 y (y + 3)$ . It is not a factor.