sq(2x + 4) = -1/2x + 7?

Question

helpp plzz find x

Answer 1

if that sq stands for square root then
square both sides so:___2x+4=1/4x+49
then minus 1/4x so:_____1.75x+4=49
then minus 4 so:_______1.75x=45
then divide by 1.75 so:
the answer is X=25.71428571 or X=180/7 exactly.

BEST ANSWER

Answer 2

Square both sides ---> 2x+4 = 1/4x^2-7x+49
Move all to one side ----> 0 = 1/4x^2-9x+45
Plug into quadratic formula ---> {-(-9)+/-sq[(-9)^2-4(1/4)(45)]}/2(1/4)
Simplify ---> [9+/- sq(36)]/(1/2)
Simplify ---> 18+/-12
Answer ---> x=30 or 6

Answer 3

Take square of both sides

P.S.:
x>=-2