СРОЧНО ПОМОГИТЕ!!!ПОЖАЛУЙСТА!!!Заранее спасибо
1. (t-8)²-t(t-6) при t= -1,5
2. (3t+2)²-4(3t+1) при t= - 2/3
3. (6t+1)²-(1-6t)² при t= -3/4

1.(t-8)^2-t(t-6)=t^2-16t+64-t^2+6t=-16t+64+6t=-10t+64=-10*(-1,5)+64==15+64=79;2.(3t+2)^2-4(3t+1)=9t^2+12t+4-12t-4=9t^2=9*(-2/3)^2=9/1*4/9=4/1=4;3.(6t+1)^2-(1-6t)^2=36t^2+12t+1-1+12t-36t^2=12t+12t=24t=24*(-3/4)==24/1*(-3/4)=-18/1=-18.

1) (t-8)2 - t(t-6) = (t-8)2 - (t2 - 6t) = t2 - 16t + 64 - t2+6t = 64-10tпри t=-1,564-10*(-1,5)=792)(3t+2)2 - 4(3t+1) = 9t2 + 12t + 4 - 12t - 4=9t2при t=-2/39*(-2/3)2=9*4/9=43)(6t+1)2-(1-6t)2=36t2+12t + 1 - (1-12t+36t2) =36t2 +12t +1-1+12t-36t2=24tпри t=-0,7524*(-0,75)=-18