sqrt(+72) = sqrt(49) = ±7
-7.. square root cancels out square
Since a squared plus b squared equals c squared, that is the same as c equals the square root of a squared plus b squared. This can be taken into squaring and square roots to infinity and still equal c, as long as there is the same number of squaring and square roots in the problem. Since this question asks for a and b squared three times, and also three square roots of a and b both, they equal c. Basically, they cancel each other out.
It's the square root of a2+b2. It cannot be simplified. It is NOT a+b. The answer is c square.
X + y
(x squared plus the square root of 2) times (x squared minus the square root of 2).
square root of (x2 + 1) = no simplification (square root of x2) + 1 = x + 1
factor it
The surface area is length times width plus length. Then you find the square root of the width divided by two and then squared. You add this to the height squared plus the width. The width is multiplied by the square root of 1/2 squared plus the height squared.
a2 + 62 = 122 a2 + 62 - 62 = 122 - 62 a2 = 144 - 36 a2 = 108 taking the square root of each side, we get a equal plus or minus the square root of 108, or plus or minus 6 times the square root of 3.
The diameter of a rectangular area is the square root of the length squared plus the width squared. D = √(L²+W²).
4
well, the square root of 81 is 9, and seven squared is 49, so it wud be 40