!!!!!!!!!!!!!!!!!!!!!!!!..!
1)24а^2-64аb+9ab-24b^2-(24a^2-9ab+64ab-24b^2)=24а^2-64аb+9ab-24b^2-24a^2+9ab-64ab+24b^2=-128ab+18ab
2) cp+3c^2-(3c^2-3cp+cp-p^2)=cp+3c^2-3c^2+3cp-cp+p^2=3cp+p^2
(√3+2)²-2√12=√3²+2*2*√3+2²-2√4*3=3+4√3+4-2*2√3=7+4√3-4√3=7
35.....................................