Question

Verify

Answer 1

Trying to figure out the answer now

Answer 2

use (a-b)^2 formula

Answer 3

(a-b)^2 = a^2 - 2ab + b^2

Answer 4

(8sqrtb-5)^2

Answer 5

@ganeshie8

Answer 6

nope, u need to expand...
wolfram WILL NOT help u this time ok

Answer 7

use the formula :)

Answer 8

\((a-b)^2 = a^2 - 2ab + b^2\)

Answer 9

Damn lol cause I don't understand how to use the formula

Answer 10

Where is to 2 coming from? I'm soooooooo lost!

Answer 11

oh if u dont wanto use the formula, there is another way

Answer 12

let me show u

Answer 13

ok please do

Answer 14

u might like it better than the damn formula

Answer 15

I'm sure I will

Answer 16

\(\large (5 - 8\sqrt{b})^2 = (5 - 8\sqrt{b}) (5 - 8\sqrt{b}) \)

Answer 17

but u should practise using formula
for now its ok

Answer 18

see if u can simplify the right hand side, like u simplified in the last problem

Answer 19

FOIL

Answer 20

Would it be 8sqrtb^2?

Answer 21

lets see :


\(\large (\color{red}{5 - 8\sqrt{b}}) (\color{green}{5 - 8\sqrt{b}}) \)


\(\large \color{red}{5 } (\color{green}{5 - 8\sqrt{b}}) - \color{red}{8\sqrt{b}}(\color{green}{5 - 8\sqrt{b}})\)

Answer 22

fine wid wat i did in second step ?

Answer 23

I'm trying

Answer 24

89+16sqrt5b

Answer 25

ok, here is the complete solution :-

\(\large (\color{red}{5 - 8\sqrt{b}}) (\color{green}{5 - 8\sqrt{b}}) \)

\(\large \color{red}{5 } (\color{green}{5 - 8\sqrt{b}}) - \color{red}{8\sqrt{b}}(\color{green}{5 - 8\sqrt{b}})\)

\(\large 25 - 40 \sqrt{b} - 40 \sqrt{b} + 64b\)

\(\large 25 - 80 \sqrt{b} + 64b\)

Answer 26

let me knw if any step doesnt make sense

Answer 27

That's the final answer?

Answer 28

yes the last line is the final answer,
but you need to make sure u digest it fully -- else, these simplifications will haunt u everywhere u go, they come in almost all places !

Answer 29

I'm writing it down so I can practice later.. on a time crunch now.

Answer 30

okie good luck

Answer 31

Thank you.. I think I understand

Answer 32

:) good to hear !

Answer 33

anything is easy for u, lol u did the most difficult problems in statistics !!

Answer 34

to my knowledge, statistics is the hardest subject