Answer:
One way to factor equation is to find the zeros. Its obvious that x=-1 is solution for this. So one factor is (x+1)
the next factor should include 2x at first (because we have 2x^2 in the equation which can not be made any other way)
Let's suppose the factor is (x+1)(2x+b)
Since we do not know what is b open the brackets 2x^2+bx+2x+b. If this is equal to 2x^2+5x+3 then b=3. We are left with (x+1)(2x+3)=2(x+1)(x+3/2)
Would go for other shorter solutions, but they require some deeper understanding like Horner's scheme,Fermat's Theorem or even deeper which I assume You will not understand)
4/15 = 0.267
8/25 = 0.32
0.267/0.32 = 0.834375
We're going to solve each of the systems to determine the solution.
<u>System </u>
using a graph tool
the solution is the line
see the attached figure N
<u>System </u>
using a graph tool
the solution is the shaded area
see the attached figure N
<u>System </u>
using a graph tool
The system has no solution
see the attached figure N
<u>System </u>
using a graph tool
the solution is the shaded area
see the attached figure N
therefore
<u>the answer is</u>
<u>System </u>
Answer:
B. The range of the function is all real numbers