SAT Math 9.2 Algebra and Functions
|Algebra II||Quadratic Equations|
|Algebra and Functions||Solving Quadratic Equations by Factoring|
|Passport to Advanced Math||Radicals and rational exponents|
|Product Type||SAT Math|
|SAT Math||Algebra and Functions|
Then, we subtract 25 from each side to further isolate x. Now we’re working with –x squared = -16.
Both sides are negative, so we can multiply both sides by -1 to get x squared = 16.
From here, pretty simple. Take the square root of both sides, and we get 4.
But don’t forget it can be positive OR negative.