No their not they have four sides but their not
7.9168 x 10^8
790000000 + 1680000 = 791680000
784/ 93 = 8.43010752688
93 * <span>8.43010752688 = 784</span>
<span>x^2 - 4x - 12 = 0
factors
(x - 6)(x + 2) = 0
</span>Set (x - 6) and (x + 2)<span> equal to </span><span>0</span><span> and solve for </span><span>xx</span>.<span>
x - 6 = 0; x = 6
x + 2 = 0; x = -2
answer
x = -2 or x = 6</span>