s quare both sides?

[g1sk8terz]

hi here's my problem: root of x + x = 1


should i subtract x from both sides
then square both sides?

if so, then should i square (1-x) or 1 squared minus x squared?

 

[stapel]

Your formatting is ambiguous. Is the "root" a square root? A cube root? Something else? Is the first "x" included in the root, or are both x's included?

Please reply with clarification, showing the steps you have tried. Thank you.

Eliz.

 

[g1sk8terz]

sorry here it is again


(square root of x) + x = 1

solve for x

(square root of x) = 1 - x

and then i square both sides....to get x = ...
now there's my problem. should i square the expression (1-x)
or should i just do SQUARE 1 - SQUARE x

 

[stapel]

Thank you for your reply.

You have:

. . . . .sqrt(x) + x = 1

. . . . .sqrt(x) = 1 - x

. . . . .[sqrt(x)]² = (1 - x)²

. . . . .x = 1 - 2x + x²

. . . . .0 = 1 - 3x + x²

. . . . .x² - 3x + 1 = 0

Apply the Quadratic Formula. Remember to check your solutions in the original problem, to make sure neither of them gives you a negative inside the radical.

Hope that helps a little.

Eliz.

 

[g1sk8terz]

SWEEET that'ss what i got also....thanks for your time