Answer:
x = 3 and x = -7
Step-by-step explanation:
The given quadratic equation is
. We need to find the solution of this equation.
If the equation is in the form of
, then its solutions are given by :

Here, a = 1, b = 4 and c = -21
Plugging all the values in the value of x, such that :

So, the solutions of the quadratic equation are 3 and -7.
Step-by-step explanation:
x = the number
2x - 25 = x
2x = x + 25
x = 25
Answer:
can't be determined
Step-by-step explanation:
we would need to know the total number of bars/chips he brought
Answer:
Step-by-step explanation:
<u>The volume is:</u>
- V = Bl = 1/2(ah)l
- V = 1/2(7*8)*11 = 308 cm³
C is 2 because you have to move the 5 so you add 5 to 13 which is 18 then divide both sides by 9 so it's 2