Question

ok I need help with this problem and its due tonight. its goes as such below:

short leg= x
long leg= x+7
Longest leg= 35

this is a squared plus b squared equals c squared and i am hopeless at math help please :/

Answer 1

a² + b² = c²
x² + ( x +7)² = 35²

Answer 2

Ok. Where do I go from there? Apologies math is not my best area.

Answer 3

Expand ( x +7)² = ....

Answer 4

(x+7)(x+7)?

Answer 5

FOIL them out, so that you can simplify with other terms!

Answer 6

Ok that is how far I got then I got lost. 2x^2+14x+49=1225

Answer 7

Great job, indeed :)

Answer 8

but i need the shortest leg

Answer 9

You need the form ax² + bx + c = 0 to solve for x :)

Answer 10

Huh?

Answer 11

I thought we were using the Pythagoreom Theorom.

Answer 12

It is college math. I barely passed in high school.

Answer 13

We did at the first step :)

Answer 14

I'm really sorry I get mixed up easily :C

Answer 15

2x² + 14x + 49 = 1225
Can you make the right side "0"

Answer 16

that would end up with the single number being negative is that ok?

Answer 17

er well if it is allowed to have a negative in there then it would be......

Answer 18

negative 1176

Answer 19

which would make the equation 2x^2+14x-1176

Answer 20

2x² + 14x -1176 = 0
Can you solve for x now?

Answer 21

i think so let me try apologies again aspbergers does not make abstract concepts easy in the least

Answer 22

28,21

Answer 23

x = 21!

Answer 24

ok let me try that and see if it works

Answer 25

awesome thank you thank you

Answer 26

Omit the negative value x = -28 ( doesn't make sense for the length )

Answer 27

it was positive 28 but 21 was right thank you for your help

Answer 28

No, x = -28, not 28 !

Answer 29

28 worked as well as 21

Answer 30

thank you again for your help :)

Answer 31

ahhh well thank you again. have a good day :)