Question

i not sure if i did this right. help please :)
multiply using foil
(10+square root 6)(10-square root 3)
after using foil i got
100+17.32+24.49-4.24=137.57???

Answer 1

help @hartnn

Answer 2

someone just help :/

Answer 3

It is not correct

Answer 4

ok can you help me and explain how to get the correct answer

Answer 5

\[
\left(10+\sqrt{x}\right)
\left(10-\sqrt{y}\right)= 100 + 10 \sqrt x -10 \sqrt y - \sqrt {xy}
\\

\]
Replace x by 3 and y by 6 and use your calculator.

Answer 6

ok so that is the equation we use every time we have a problem like this?

Answer 7

Yes, in my previous post x=6 and y=3

Answer 8

is the answer 82.43

Answer 9

No

Answer 10

i plunged in the numbers why is it not working?

Answer 11

how about 88.58

Answer 12

\[
\sqrt 6=2.44949\\
\sqrt 3= 1.73205\\
\sqrt {18}= 4.24264\\
\]

Answer 13

ok well when i plugged in the x and ys this time i got 88.58

Answer 14

100 + 10 (2.44949) -10 (1.73205) - 4.24264=102.932

Answer 15

ok so are you suppose to get the square root of 6 3 and 18 before you plug them in?

Answer 16

Yes

Answer 17

ok thank you for explaining that can you help me with one more question?

Answer 18

Post is as a new problem and let me know when you do

Answer 19

ok sounds good

Answer 20

it is done on the top

Answer 21

it is about the third from the top

Answer 22

did you find it?