Question

Ajutorrr coroana ce vreți

Answer 1

Răspuns:

4.

Mg= radical din a×b

a= 5rad2

b=10rad2

Mg= radical din 50×2= rad100= 10

5.

a) x²=16

x= ±4

b) -6+3x=0

3x=6

x=6/3

x=2

c)

rad2x -3rad2+2rad2=0

rad2x-rad2=0

rad2x=rad2

x=rad2/rad2

x=1

d)

7x-9=2(3x+1)

7x-9=6x+2

7x-6x=2+9

x=11