find x if x=1,000,000-0.25x
½+2
2*(6*n - 1)^2 - 1
4*(3*n - 1)^2 - 1
2*(3*n - 1)^2 - 1
2*(9*n - 1)^2 - 1
-1/(x)^2
(x-4)(3x+8)
davids mass is 5kg less than Sucha's who in return is 8 kg lighter than paul.if their total mass is 197 kg dind how heavy is each ...
$$\begin{bmatrix} 1 & 1 & 1 \\\\ 1 & 1 & 1 \\\\ 1 & k & 1 \end{bmatrix}$$