Question

algebra 2 help look below

Answer 1

\[5\sqrt{x-6}= 20\]

Answer 2

I'm doing Algebra 1 but lets see...

Answer 3

I don't think i learned this in algebra 1.. so i dont think u'll know it

Answer 4

What are these equations called?

Answer 5

I'm in algebra 2 , Give me a sec lol

Answer 6

ok

Answer 7

You have a good calculator for math? If you so you try plugging in numbers for x to see if the outcome is 20 ?

Answer 8

i dont know how to do that on my scientific calculator

Answer 9

is it multiple choice?

Answer 10

anyway, i have to know how to work it out on paper

Answer 11

yeah

Answer 12

-10, 10, 22, and no solution

Answer 13

this is just a practice problem so it tells u which it is after

Answer 14

i did it and got 22, but it said try squaring both sides first..

Answer 15

then it said the right answer is no solution

Answer 16

Hold on one sec.

Answer 17

This is a square root function right?

Answer 18

no

Answer 19

this is a radical equation

Answer 20

thats not how u do it

Answer 21

its not a function at all.. and i dont need to graph anything

Answer 22

the steps are: isolate the variable, square both sides, solve for the variable, and check ur work

Answer 23

Ohhhh I feel slow those are easier lol

Answer 24

Okay so another example problem say you have √x+7 - 5=x
√x+7 = x +5 Isolate the radical
(√x+7)^2 = (x+5)^2 Square each other
x+7= x^2 + 10x + 25 Simplify
0= x^2+9x+18 Combine like terms
0= (x+3)(x+6) factor
x= -3 or x = -6 Zero- Product Property

Answer 25

thats a different one ok. mine is harderr. because there is a number in front of the radical.

Answer 26

so that problem the answer was -3?
to check your work you can do
√ x+7 -5 = x
√-3+7-5= -3
√4-5 = -3
2-5= -3
-3=-3

Answer 27

You still do the same thing if the number is in front but basically you just plug in numbers in your scientific calculator too, that is a lot easier. I know schools or homeschooling allowing you to have that and use it.

Answer 28

no, technically we don't do that

Answer 29

we work it out, otherwise, how will u learn?

Answer 30

5sqrt(x-6) = 20

divide 5 both sides

sqrt(x-6) = 4

square both sides

x-6 = 16

add 6 both sides

x = 22

Answer 31

there^ that is how u do it

Answer 32

That is true but we have technology to help

Answer 33

the practice problems are probably just wrong so.. yea

Answer 34

otono

Answer 35

yea, i know but i dont even know how to use it

Answer 36

cupcake

Answer 37

i dont know how to do these kind of problems on a calculator

Answer 38

what

Answer 39

They didn't teach you ?

Answer 40

no..

Answer 41

Dang :(

Answer 42

doing ur work on a calculator is not encouraged.

Answer 43

fan me cupcake

Answer 44

is that all u wanted -.-

Answer 45

no

Answer 46

I see but you have to know how to work that calculator, because when you get to trig and pre cal it gets harder and you need that , trust me

Answer 47

oh, btw, im not gonna take pre cal

Answer 48

my career is not gonna involve math or science and my mom said i dont need to take it

Answer 49

Lucky :( lol

Answer 50

Im sorry I wasn't really help.

Answer 51

its ok