factorize 36 $x^{3}$ + 24 $x^{5}$
2 [-3 (4-1-6 +3) -4] - [3-6 +2 -8]
find y and x with : yxyx = x^2/4
2x( $x^{2}$ )
(D ^ 2 + 4D + 4) * y = e ^ (2x) + 2 ^ x
sum all this numbers:
30
20
300
30...
1615÷4
find the value of x if
x/500 x 100 = 2.5
