Answer:
Its B
Step-by-step explanation:
You're correct
Well realistically this problem could be completed without use of quadratic equation:
-2 = -x + 2x - 4
+4 +4
2 = x
However, for quadratic equation, there needs to be 3 numbers:
ax^2+bx+c=0
Putting the equation in this form, we can say that
(0)x^2+(1)x+(-2)=0
Taking that and putting it into the quad formula makes:
x=(-1+-sqrt((1)^2-4(0)(-2)))/2(0)
That makes it a divide by 0 problem, making it unsolveable
Answer:
gradient = -5
Step-by-step explanation:
A line passes (x1, y1) and (x2, y2) has the gradient (slope) which is calculated by:
gradient = (y2-y1)/(x2-x1)
As shown in picture, this blue line passes (-1, 0) and (0, -5)
=> gradient = (-5 - 0)/(0 - -1) = -5/1 = -5
Hope this helps!
A. 
Answer:
Solution given:
we know that
product of power and power is added and power to power is multiplied for same base only.
I.E.
product of same base but different power:
power to power :
By using above property
![2^{[6+6]}=2^{12}](https://tex.z-dn.net/?f=2%5E%7B%5B6%2B6%5D%7D%3D2%5E%7B12%7D)
