Question

how do you simplify (3x+10)^2? i mean, what's the next step after that? i know its supposed to be 9x^2+something+100.. can somebody please help? :)

Answer 1

9x^2+60x+100 :)

Answer 2

(3x+10)(3x+10)
9x^2+60x+100

Answer 3

wait a min... that is the ans rite?

Answer 4

Yup, it is right (:

Answer 5

haha thanks mimi!:D

Answer 6

yw
http://www.wolframalpha.com/input/?i=%283x%2B10%29%5E2

Answer 7

thanks so much :) whats the rule for that?? :)

Answer 8

Rule!? um idk, I just expand it

Answer 9

i mean is it (a+b)^2=a^2+2ab+b^2?

Answer 10

FOIL First Outside Inside Last

Answer 11

\[x^2 + y^2 = ( x + y) ( x + y )\]\[x^2 - y^2 = ( x + y) ( x - y )\]

Answer 12

I used the FOIL method xD

Answer 13

yes purpleberry:)

Answer 14

abdullah ur wrong...

Answer 15

thanks so much!! :) <3

Answer 16

Abdullah, is right xD

Answer 17

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

Answer 18

x^2 + y^2 does not equal to (x+y)^2

Answer 19

no prob at all purpleberry:)

Answer 20

Oh yeah, my bad sorry

Answer 21

im not wrong .. -_-"

Answer 22

?? that is wrong...

Answer 23

you are right but thats not the equation used over here :)

Answer 24

@abdullah

Answer 25

uha .. sorry

Answer 26

noproblem:)

Answer 27

the rule is ..
\[(x+y)^2 = x^2 + ( 2xy ) + y^2\]

Answer 28

yes

Answer 29

yup:P

Answer 30

Diyadiya u r wrong too .. ;p 1-1 lool

Answer 31

lol !! i'm not wrong i wrote a and be in place of x and y
that doesn't make any difference

Answer 32

i mean the second one
(a-b)^2=a^2-ab+b^2
should be .. (a-b)^2=a^2-2ab+b^2