Question

Find the zeros of the polynomial 2 x square - 9 minus 3x​

Answer 1

Answer:-

$\\ \rm\longmapsto 2x^2-9-3x=0$

$\\ \rm\longmapsto 2x^2-3x-9=0$

• Use mid term splitation method

$\\ \rm\longmapsto 2x^2-6x+3x-9=0$

$\\ \rm\longmapsto 2x(x-3)+3(x-3)=0$

$\\ \rm\longmapsto (x-3)(2x+3)=0$

$\\ \rm\longmapsto (x-3)=0\:or\:(2x+3)=0$

$\\ \rm\longmapsto x=3\:or\:x=\dfrac{3}{2}$