Question

Write the coefficient of $x^2$ in each of the following.

(i) 17 - 2x + 7$x^2$

(ii) 9 - 12x + $x^3$

(iii) $\frac{\pi }{6}{x}^2$ - 3x + 4

(iv) $\sqrt{3}$ x - 7

Answer 1

Coefficient of $x^2$,

in (i) is 7

in (ii) is 0 as there is no term of $x^2$ i.e. 0 $x^2$

in (iii) is $\frac{\pi }{6}$

in (iv) is 0