Question

x² = 144
5x - 10 = 2x + 8
10x - 6 = 6x + 6
4 + 3x = 28
9x - 4 = 4x + 31
2x + 5 = x -2
x - 3 = 2x + 2
3x + 7 = 10
x³ = 125
3f - 9 = f + 11

Answer 1

Resposta:

x²=144

x=√144

x=12

5x-10=2x+8

5x-2x=8+10

3x=18

x=18/3

x=6

10x-6=6x+6

10x-6x=6+6

4x=12

x=12/4

x=3

4+3x=28

3x=28-4

3x=24

x=24/3

x=8

9x-4=4x+31

9x-4x=31+4

5x=35

x=35/5

x=7

2x+5=x-2

2x-x=-2-5

x= -7

x-3=2x+2

x-2x=2+3

-x=5 multiplica por -1

x=-5

3x+7=10

3x=10-7

3x=3

x=3/3

x=1

x³=125

x=

$\sqrt[3]{125}$

x=5

3f-9=f+11

3f-f=11+9

2f=20

f=20/2

f=10