Since we want it in the form: (x - a)², let's first expand (x - a)² and then equate for the coefficients.
(x - a)² = x² - 2ax + a²
x² + 4x - 15 = x² - 2ax + a²
Now, let's focus on the middle term.
4x = -2ax
4 = -2a
a = -2
Thus, we know that a = -2
Then, we can say (x + 2)² = x² + 4x - 15
x² + 4x + 4 = x² + 4x - 15
Thus, 19 units are needed in order to complete the square to produce:
(x + 2)²
I think X is 2. But I am not sure, cuz I don’t know what you teacher is really asking you to do.
144 degrees Fahrenheit.
you had to multiply 16*9=144
-7 and positive 6. if you multiply a negative by a positive it will always be a negative.
15+(10-x)=15 would be your equation if that is what you are looking for.
