Question 744667

general form of quadratic equation is {{{y=ax^2+bx+c}}}

you are given: {{{y=x^2-4}}}; means {{{a=1}}}, {{{b=0}}},  and {{{c=-4}}}

use quadratic formula to find solutions:


*[invoke quadratic_formula 1, 0, -4, "x"]


graph:

{{{ graph( 600, 600, -10, 10, -10, 10, x^2-4) }}}