X^2+5x-24=0
D=5^2+24*4=121=11
x1=(-5-11)/2=-8
x2=(-5+11)/2=3
Log8 32-log8 1/2= <span>log8 ( 32 / 1/2)= log8 64 = 2</span>
Y`=√X-3=0
√X√=3
X=9
Y(1)=2/3-3+1=-1 1/3
Y(9)=2/3*9*3-27+1=-8 НАИМ
А)4z(z-5)=4z^2-20z
2)a) (2a-1)^2=4a^2-4a+1
B) (2x^3+2z^2)^2=4x^6+4z^4
-3,6+48:(-8)=-3,6+(-6)=-9,6