0
x2 - x = 12
Rewrite as x2 - x - 12 = 0
Now you can solve by factoring as you do most polynomials.
(x - ?)(x + ?)
Find the factors of -12 that also add up to -1
In this case, -4 and 3
(x - 4)(x + 3) = 0
Solve individually because anything multiplied by zero is zero
x - 4 = 0
x = 4
x + 3 = 0
x = -3
So your answers are -3,4. You can check by popping them into the original equation.
What else can I help you with?
How would you solve x squared minus 3x minus 15 equals 0?
3x2 when x = 2 is the answer 3 X 4 = 12 or is the answer (3 X 2)2 = 62 = 36
Solve 2 open bracket 2x minus 5 close bracket plus 6 equals 12?
2(2*4-5)+6 = 12
How do you find the hight of a triangle?
If you know the base and the hypotenuse (the other line that isn't the height), the hypotenuse squared minus the base squared equals the height squared. Example: base = 5 hypotenuse = 13 a2 - b2 = c2 25 - 169 = c2 144 = c2 12 = c height is 12
19 minus 7 equals what?
12.
What multiplication problem equals 144?
12 squared.
When you subtract 2 square numbers the answer is twelve?
4 squared minus 2 squared equals 12
How would you solve x squared minus 3x minus 15 equals 0?
3x2 when x = 2 is the answer 3 X 4 = 12 or is the answer (3 X 2)2 = 62 = 36
What does x equal when x squared minus 17x equals 60?
5 or 12
Sec squared theta plus tan squared theta equals to 13 12 and sec raised to 4 theta minus tan raised to 4 theta equals to how much?
It also equals 13 12.
What is x in the equation -3x squared minus 5x plus 12 equals 0?
X=-3
Solve the equation 15x minus 12 equals 3x plus 8?
15x minus 8=minus 180 3x+8=24
What is minus 2 squared minus 12?
-22 - 12 = -8
What is X squared plus X minus 12 equals 0?
It is a quadratic equation in X, with two real roots.
What is the solution of x squared minus x minus 12 equals o?
x2 -x -12 = 0 (x+3)(x-4) = 0 Therefore, x = -3 & 4
How do you solve X-3 in parentheses squared equals -12?
9
When you subtract one square number from another and the number is 12 what are the two square numbers?
The answer is 4 squared minus 2 squared as 4 squared is 16 minus 2 squared, which is 4, gives you 12 as an answer.
What is x squared minus 8x equals negative 12?
If: x^2 -8x = -12 then x^2-8x+12 = 0 and so x = 2 or x = 6
