Question

solution. can i please just have the answer. please.

x2 + 10x + 25 = 8

Answer 1

Just post all your homework here. Glad to do it for you.

Answer 2

x2+35x=8 is wrong right.

Answer 3

yes, they want you to solve for x

Answer 4

yes well i can't even simplify from the original problem. i am trying to put it into the formula but I'm not doing it right.

Answer 5

First you have to get all terms on one side and 0 on the other side

Answer 6

subtract 25 from 8

Answer 7

subtract 8 from 25

Answer 8

okay so x^2+10x+8=0

Answer 9

no

Answer 10

x^2+10x+25-8=0

Answer 11

x^2+10x+17=0

Answer 12

thats okay yeah my bad. i got that.

Answer 13

so you have it in the form of ax^2+bx+c=0
what are a,b,c?

Answer 14

a= x^2 b=10x c=0

Answer 15

but the 17?

Answer 16

just add it or...

Answer 17

no, a, b, and c are coefficients, you don't include the variables

Answer 18

a=1, b=10, c=17

Answer 19

alright. i got that. thanks for going through this with my btw...

Answer 20

sure

Answer 21

do you know the quadratic formula?

Answer 22

no.

Answer 23

\[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 24

o.o alright can you step me through that i don't know what the sign is after the b which is -10 right?

Answer 25

thats a plus or minus, means there are 2 solutions, similar to this:\[x=\frac{-b + \sqrt{b^2-4ac}}{2a}, \frac{-b - \sqrt{b^2-4ac}}{2a}\]

Answer 26

-b is -10

Answer 27

ah. alright that makes sense.

Answer 28

\[x=\frac{-10 + \sqrt{10^2-4(1)(17)}}{2(1)}\]
and
\[x=\frac{-10 - \sqrt{10^2-4(1)(17)}}{2(1)}\]

Answer 29

alright so all i do is "do it" right?

Answer 30

yea, simplify it

Answer 31

alright. so 10 squared is 100 - 4 = 96 multiplied by 17? i can't be doing this right

Answer 32

PEMDAS, multiplication and division come before addition and subtraction

Answer 33

okay so i square the 10 then times 17 by 1 and then by four?

Answer 34

100-[4*1*17]

Answer 35

32

Answer 36

\[x=\frac{-10 \pm \sqrt{32}}{2}\]
simplifiy more, the radical can be simplified

Answer 37

the sqr of 32 is 5 ?

Answer 38

no

Answer 39

:I six if i round?

Answer 40

\[\sqrt{32}=\sqrt{16*2}=\sqrt{16}*\sqrt{2}=4\sqrt{2}\]

Answer 41

ah... okay and then i ...

Answer 42

simplify more

Answer 43

can i add at this point because i can't exactly divide?

Answer 44

\[x=\frac{-10 \pm 4\sqrt{2}}{2}=-5 \pm 2\sqrt{2}\]

Answer 45

thats it

Answer 46

thank you for stepping me through that dockworker

Answer 47

you're welcome