Question

a)2x²-6=156
b)-x²+(x-3)²=-27
c)x³+150:2=2x³-10x5
d)14:2-(3³+³√-216)=-2√x
e)(x+3)²=8x2
f)³√2x-1=3

Answer 1

2x² - 6= 156

2x² = 156+6

X² = 162÷2

X² = 81

X = √ 81

X = 9

−x2+(x−3)2+27=0

−6(x−6)=0

(x−6)=0

x=6

Answer 2

a) 2x^2= 156+6
2x^2=162
x^2=162/2
x^2=81
✓x^2=✓81
x=9

b) -x^2+(x^2-6x+9)=-27
-x^2+x^2-6x+9=-27
-6x=-36
6x=36
x=36/6
x=6

c) x³+150:2=2x³-10x5
x^3-2x^3=(-50)*2 -150
-x^3=-100-150
-x^3=-250
x^3=250
3✓x^3=3✓250
x=3✓250. raíz cúbica

d) 14:2-(3³+³√-216)=-2√x
7 - (27 -6)=-2✓x
7-21=-2✓x
-14/-2=✓x
7=✓x
(✓x)^2=7^2
x=49

e)(x+3)²=8x2
x^2+6x+9=16
x^2+6x-5=0
(x-1)(x+5)=0
x=1
x=-5


f)³√2x-1=3
(³√2x-1)^3=3^3
2x-1=27
2x=28
x=14

SUERTE!!
Costo hacerlo en celular xD