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aceace
 2 years ago
Best ResponseYou've already chosen the best response.0\[\left x^2 1 \right \le 4\]

aceace
 2 years ago
Best ResponseYou've already chosen the best response.0i got x is less than or equal to root 5 / x is greater than or equal to root negative 3

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0Could u give me a medal first plese

aceace
 2 years ago
Best ResponseYou've already chosen the best response.0How do you do this question? O.o

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0Medal first please i onlybhelp ppl who give medals

aceace
 2 years ago
Best ResponseYou've already chosen the best response.0Are meant to give medals first?

Sqrt
 2 years ago
Best ResponseYou've already chosen the best response.0no u answer first then get medals _______________

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0Ok so u know absolute value is always positive right?

Sqrt
 2 years ago
Best ResponseYou've already chosen the best response.0The number is not necessarily positive, but the definition is the value by which the number is farthest from zero (distance). Eg 1 and 1 both are 1 unit away from zero. That is why it is represented as a positive number. Also, distance can't be represented as a negative number. (e.g. You can't be 5 km away from home.)

Hero
 2 years ago
Best ResponseYou've already chosen the best response.1x²  1 ≤ 4 4 ≤ x²  1 ≤ 4 4 + 1 ≤ x² ≤ 4 + 1 3 ≤ x² ≤ 5 √3 i ≤ x ≤ √5

Hero
 2 years ago
Best ResponseYou've already chosen the best response.1Since √3i does not represent distance, the solution should only be written as x ≤ √5

aceace
 2 years ago
Best ResponseYou've already chosen the best response.0what about minus root five?

Sqrt
 2 years ago
Best ResponseYou've already chosen the best response.0"There is actually no such thing as a plusorminus square root: it is merely language used to save words. For example, the equation x²=9 has two solutions, which are x=3 and x=3. It is tedious to say: “since x²=9, x must be 3 or 3″. As a shortcut, we say: “since x²=9, x must be ±3.” http://www.xamuel.com/plusorminussquareroots/

Hero
 2 years ago
Best ResponseYou've already chosen the best response.1x²  1 ≤ 4 4 ≤ x²  1 ≤ 4 4 + 1 ≤ x² ≤ 4 + 1 3 ≤ x² ≤ 5 √5 ≤ x ≤ √5

Sqrt
 2 years ago
Best ResponseYou've already chosen the best response.0x²  1 ≤ 4 x²≤ 4+1 x²≤5 √x²≤√5 x≤√5
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