logarithms

(in each case check your answer by subtituting back the value for x)

$\displaystyle 6.5^x =8.4^{(4x-10)}$

differentials

$\displaystyle s=4e^{3t} -e^{-2.5t}$ w.r.t. t

$\displaystyle y=4sin2\theta-3cos4\theta w.r.t. \theta$

integrate

$\displaystyle \int(2x^3-3x^2+5x-2)dx$

thanks(Itwasntme)