Thursday

December 18, 2014

December 18, 2014

Posted by **Wendy Q** on Monday, May 2, 2011 at 5:58pm.

why does the equation x^2 = 9 has two solutions

- Algebra Please Help -
**Holly**, Monday, November 7, 2011 at 3:41pmx^2=-9 has no real solution because when you square a number, it is always positive. There are never negative squares of numbers.

x^2=9 has two solutions because one solution is the given 3*3=9 and the other is -3*-3 because when you multiply two negative numbers they become positive.

**Answer this Question**

**Related Questions**

ALGEBRA - The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 ...

Math 117 Algebra - for the following equation, state the value of the ...

College Algebra 2 - for the following equation state the value of the ...

Algebra Please Help/ Check - why does the equation x^2=-9 has no real solution? ...

algebra - For the following equation, state the value of the discriminant and ...

Algebra - For the following equation, state the value of the discriminant and ...

Algebra II - 1)What method(s) would you choose to solve the equation: x2 + 2x - ...

algebra - determine the nature of the solutions of the equation, one real ...

Math - For the following equation, state the value of the discriminant and then ...

algebra - determine the nature of the solutions of the equation. Two real ...