Question

please help asap!
medal + fan
question in the comments

I don't know what I am doing wrong in this numerical proof, should I try using negative numbers instead?

Answer 1

probably an algebra mistake somewhere. it shouldn't matter what the numbers you choos

Answer 2

Could you try and see if you find it because I can't seem to see what I am doing wrong, I simply followed step-by-step what my teacher did and somehow I messed up somewhere.

Answer 3

I think I see it

(y+x)^2 + (ax+b) = y^2 + 2xy + x^2 + ax + b

there shouldn't have been a 2 in front of the y^2

Answer 4

also, you forgot the x^2 term

Answer 5

Well here is my algebraic proof maybe that will help here give me a sec.

Answer 6

try

(y+x)^2 + (ax+b) = y^2 + 2xy + x^2 + ax + b

and tag me if the numbers don't work

Answer 7

here's where you made your mistake:

Answer 8

(y+x)(y+x)
y^2+yx+yx+x^2

^ this part is correct

but in the next step you wrote:

y^x + 2yx + y^2

you changed the x^2 at the end to y^2

do you understand?

Answer 9

Oh Woooooooow I hadn't even noticed that at all and I went over it 10 times. I think I need a nap, okay well thank you so much!!!!!!