If you would like to know the discriminant of the quadratic equation 0 = -x^2 + 4x - 2, you can do this using the following steps:
<span>0 = -x^2 + 4x - 2
</span>
<span>0 = ax^2 + bx + c
a = -1, b = 4, c = -2
D =
b^2 - 4 * a * c = 4^2 - 4 * (-1) * (-2) = 16 - 4 * 2 = 16 - 8 = 8
</span>
The correct result would be b. 8.
Answer:
- 8
Step-by-step explanation:
Given
x² - 64 = 0 ( add 64 to both sides )
x² = 64 ( take the square root of both sides )
x = ± = ± 8
Solutions are x = 8 and x = - 8
(-11 1/5) / 5 =
(-56/5) / 5 =
-56/5 * 1/5 =
-56/25 =
- 2 6/25 <===
5/12 is close to 4/12
9/24 is also close to 4/12
2/3 is also close to 4/12
3/12 is also pretty close to 4/12
7/24 is also quite close to 4/12
Hope this helps :)