Question

Math question need help with substation please?

Answer 1

2 solutions

X= 16

X=49

Step-by-step explanation:

original equation

x-11√x+28 = 0

  Isolate

    -11√x = -x-28+0

 Tidy up

    11√x = x+28

 Raise both sides to the second power

    (11√x)2 = (x+28)2

After squaring

    121x = x2+56x+784

Plug in 49 for  x

     11√(49) = (49)+28

Simplify

     11√49 = 77

     Solution checks !!

    Solution is:

     x = 49

Plug in 16 for  x

     11√(16) = (16)+28

Simplify

     11√16 = 44

     Solution checks !!

    Solution is:

     x = 16