Question

What is -squrt90 expressed in simplified form?

Answer 1

\[-\sqrt{90}\]

Answer 2

@zepdrix

Answer 3

@mathmale

Answer 4

@Directrix

Answer 5

@jagr2713

Answer 6

rewrite the 90 = 9*10 = 3^2 *10

in this way you get

-sqrt90 = -sqrt(10*3^2) = -3sqrt10

hope helped

Answer 7

As @jhonyy9 says, try to expand 90 under the square root...