Question

given exact and approximate solutoins to three decimal places
y^2-20y+100=4
would the answer then be y=11???

Answer 1

no 11 does not work
first of all there should probably be two answers. do you want to factor?

Answer 2

try
\[(x-10)^2=4\] so
\[x-10=2\] or
\[x-10=-2\] then solve each equation separately

Answer 3

yes,

Answer 4

i think i was working it out as a reg, equation

Answer 5

it would be 12 right

Answer 6

one would be 8

Answer 7

for an equation with an exponent of 2 you have to factor or use the quadratic formula. yes 12 is one answer but 8 is also an answer because if you solve
\[x-10=-2\] you get
\[x=8\]

Answer 8

you got it.

Answer 9

cool i got it right thank you ,