Answer
a) $=6*(B2)^2-24$
b) $x=2, x=-2$ The table showed what integers made the equation equal zero.
c) A spreadsheet can provide the answers for non-integer answers.
Work Step by Step
$6x^2-24= 0$
$6x^2-24+24= 0+24$
$6x^2 = 24$
$6x^2/6 = 24/6$
$x^2 = 4$
$\sqrt {x^2} = \sqrt 4$
$x=2, x=-2$
