Answer:
y= -3+2
Step-by-step explanation:
General form is ax^2+bx+c, and to get there we need to factor using FOIL (First Outside Inside Last)
(2x-1)(x+5)
F (2x × x)= 2x^2
O (2x × 5) 10x
I (-1 × x) -x
L (-1 × 5) -5
now add them together
2x^2+10x-x-5
2×^2+9x-5
and because the equation is in the form
ax^2+bx+c b is equal to 9
Answer:
2.5
Step-by-step explanation:
The value of (4-1/4) divided by (2-1/2) is 2.5
You welcome, <em>don't forget to give me the points...</em>
Answer:
x = -2 ±√5
Step-by-step explanation:
You want to complete the square by adding the square of half the coefficient of the linear term:
x^2 + 4x + (4/2)^2 = 1 + (4/2)^2
(x +2)^2 = 5 . . . . . simplify
x +2 = ±√5 . . . . . . take the square root
x = -2 ±√5 . . . . . . subtract 2. This is the solution.
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For the problem in the picture, replace x with p in the above.
