please solve for 18, 9, 8, 6, 5 correctly for thumbs up thanks

In Exencises 7 throvagh 78, differentiate the given fonction. 1. f(x)=(2x+1)(3x2) 2. f(x)=(x5)(12x) 3. y=10(3xt+1)(15w) 4. y=400(15x2)(3x2) 5. f(x)=31(x52x3+1)(xx1) 6. f(x)=3(5x32x+5)(x+2x) 7. y=x2x+1 8. y=5x+42x3 9. f(t)=t22t 10. f(x)=x21 11. y=x+53 12. y=1p2r2+1 13. f(x)=2x2+5x1x23x+2 14. g(x)=2x1(x2+x+1)(4x) 15. f(x)=(2+5x)2 16. f(x)=(x+x1)2 17. s(t)=2t+5f2+t 18. h(x)=x21x+x2+14x In Evercises 19 thmough 23, find an wiaition for the fangert line to the griven carve af the point where x= sop 19. y=(5x1)(4+3x);x0=0 20. y=(x2+3x1)(2x2;x0=1