Step-by-step explanation:
c=4x+5y
c-5y=4x
x=<u>c</u><u>-</u><u>5</u><u>y</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>4
hope it helps.
Answer:
(x-2)(x+4)
Step-by-step explanation:
x² + 2x - 8 = x² + 2x +1 - 9 = x² + x +x+1 - 9 = x(x+1) +(x+1) - 9
= -
= (x+1-3)(x+1+3)
= (x-2)(x+4)
Answer:
The answer is 135
Step-by-step explanation:
Answer:
The range is [-1, ∞).
Step-by-step explanation:
The points where the graph of this function cut the x axis are at x = 2 and x = 4 , it opens upwards and has a minimum value.
It has a minimum value when x = (2 + 4) / 2 = 3.
When x = 3, f(x) = (3 - 4)(3 - 2) = -1.
So the range is all real values of x >= -1, or [-1, ∞)
Only when one of the numbers is a factor of the other.