3.35+0.42+22600
0.010*2.26*10 ^6
$x_1^{2}$+ $x_2^{2}$+ $x_3^{2}$+ $x_4^{2}$+ $x_5^{2}$=2024
9 4/7 x 16
21/50
0.010*4.2*10
0.010*4.2*10 in decimal form
$$\frac{x^{3} - x^{2} - 5x + 15}{(x + 1)(x - 2)^{2}}$$