1
1/2х=4
х=4:1/2
х=4*2/1*1
х=8
2
-3/4у=6
у=6:(-3/4)
у=-6*4/1*3
у=-8
3
-1/3к=-1/6
к=-1/6:(-1/3)
к=1*3/6*1
к=0,5
4
1/2х=-12/3
х=-5*2/3*1
х=-3 1/3
5
-8/9а=-1 7/9
а=-1 7/9:(-8/9)
а=16*9/9*8
а=2
1.)6 x^5 b^3 * 5 x^2 b=30 x^10 b^4 - степень =10
2.)(3/8 a^4 b^4 c) * 1.6 c^2= 48/80 a^4 b^4 c^3 - степень =4
3)=6 p^10 n - степень =10.
а)49x^3-x=0
x(49x^2- 1)=0
<span>x(7x-1)(7x+1)=0
x1=0, x2 =1/7, x3 = -1/7
б) 2x^4-32x^2=0
2x^2(x^2-16)=0
2x^2(x-4)(x+4)=0
x1=x2=0, x3 = 4, x4 = -4</span>