Hello i relatively new to excell need help pls

I want to calculate difficult polynomials math withought solving the uknown x but simplify the expressions
eg F=[0,5*(24,4+4,38*d -(18,4+4,6*d*d)/(4+2*d)-22,5+18,4*d/(4+2*d)]*(4+d)
i cant calculate it by hand i need to make it more simple
WIth regard