Question

1_ 6(2+3X)+3(X-4)=63

2_ 5(X+3)-11=2X+19

3_ 4X+1+2.(5+X)=X+71

4_ X^2-5=59

5_ 3X^2=27

6_ X^3+75=200

7_ (X+2)^2=81

8_ 2X^3+1=17

9_ 7X^2-3=60

ayuda son ecuaciónes de la 4 para abajo tienen potencias

Answer 1

Hola!! c:

1)
6(2+3x)+3(x-4)=63
12+18x+3x-12=63
21x-=63
21x=63
x=63/21
x=3

2)
5(x+3)-11=2x+19
5x+15-11=2x+19
5x-2x=19-4
3x=15
x=15/3
x=5

3)
4x+1+2.(5+x)=x+71
4x+1+10+2x=x+71
6x+11=x+71
6x-x=71-11
5x=60
x=60/5
x=12

4)
x^2-5=59
x^2=59+5
x^2=64
x=√64
x=8

5)
3x^2=27
x^2=27/3
x^2=9
x=√9
x=3

6)
x^3+75=200
x^3=200-75
x^3= 125
x=3*√125
x=5

7)
(x+2)^2=81
x+2=√81
x+2=9
x=9-2
x=7

8)
2x^3+1=17
2x^4=17
2x=4√17
2x=2.031
x=2.031/2
x=1.0155

9)
7x^2-3=60
7x^1=60
7x=60
x=60/7
x= 8,57