Question

if one zero of the polynomial 2x square+3x + £ is 1/2find the value of £​

Answer 1

Answer:

see the solution... you can understand better...

Answer 2

$\tt \blue{A/Q}$

$\: \: \: \: \: \: \tt{If \: one \: zero \: of \: the \: polynomial} \\ \: \: \: \: \: \: \tt{2 {x}^{2} +3x + £ \: is \: \frac{1}{2} .}$

$\rule{200}2$

$\: \: \: \: \: \: \tt{P(x)=0.}$

$\: \: \: \: \: \: \tt{P( \frac{1}{2}) = 2 {x}^{2} + 3x + £ = 0.}$

$\: \: \: \: \: \: \tt{2 { (\frac{1}{2}) }^{2} + 3 \times \frac{1}{2} + £ = 0. }$

$\: \: \: \: \: \: \tt{ \cancel2 \times \frac{1}{ \cancel4} + \frac{3}{2} + £ = 0.}$

$\: \: \: \: \: \: \tt{ \frac{1}{2} + \frac{3}{2} + £ = 0.}$

$\: \: \: \: \: \: \tt{ \frac{1 + 3}{2} + £ = 0.}$

$\: \: \: \: \: \: \tt {\frac{ \cancel4}{ \cancel2} + £ = 0.}$

$\: \: \: \: \: \: \tt {£ = - 2.}$