Question

Find the zero of the polynomial $f(x) = 2x + 3$​.

Answer 1

• Lets take f(x)=0

$\\ \sf\longmapsto f(x)=0$

$\\ \sf\longmapsto 2x+3=0$

$\\ \sf\longmapsto 2x=-3$

$\\ \sf\longmapsto x=\dfrac{-3}{2}$

Which is the zero of the polynomial

Answer 2

To find the zeros, equate the given expression to zero ,

$\bf \Large \hookrightarrow \: \: 2x \: + \: 3 \: = \: 0$

$\bf \Large \hookrightarrow \: \:2x \: = \: - 3$

$\bf \Large \hookrightarrow \: \:x \: = \: \frac{ - 3}{2}$

Zero of the polynomial is -3/2