Exemplar-Exercise Problems XI — task. Mathematics CBSE, Class 9.

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Write the coefficient of

$x^2$ in each of the following :

i.

$\frac{\pi}{6}x+x^2 –1$

Coefficient of

$x^2=$

ii.

$3x – 5$

Coefficient of

$x^2=$

iii.

$(x –1) (3x –4)$

Coefficient of

$x^2=$

iv.

$(2x –5) (2x^2 – 3x + 1)$

Coefficient of

$x^2=$

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