SOLUTION: I have been working on this and something is not coming out right! Help Solve for x: √(x+7) = x-5 = I have done it this far, ( √(x+〖7)〗^2 )= (x-
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Question 380868: I have been working on this and something is not coming out right! Help Solve for x: √(x+7) = x-5 = I have done it this far, ( √(x+〖7)〗^2 )= (x-〖5)〗^2 x+7= x^2 - 10x+25=x+7 minus x from 10x minus 7 from 25 =18 0=x -10+18 0=
heres another! Suppose the area of a square is 169 ft2. Find the perimeter. Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! Square both sides of the given equation:
(x -2)(x-9) = 0,
x = 2, 9. Only x = 9 will satisfy the original equation, and thus is the final answer.
If the area of a square is 169 square feet, then an edge measures the square root of this, or 13 feet. The perimeter is then 4*13 = 52 feet.
