The answer would be =4x^2-6x+b-10 I can show you the steps if you would like
1)Remove all ()
=7x^2-2x+b-(3x^2+4x+10)
2)-(3x^2+4x+10)
3)Distribute ()
=-(3x^2)-(4x)-(10)
4)Group like terms
=7x^2-3x^2-2x-4x+b-10
5)Add like elements
=7x^2-3x^2-6x+b-10
6)Add similar elements again
=4x^2-6x+b-10
7)Answer is
=4x^2-6x+b-10
No because x=4 and y=-5 and when you plug it in you get 5(4)+2(-5)=8 20+-10=8 and 10= does not work so it is not a possible solution.
Let's create a table, and use arbitrary values of x between -3 and 3 (if the solution is not in this interval, we can use another one later). If we call:
We want to find the x's for with f(x) = 0
This is the table:
And now we can evaluate f(x) in each value of x to complete the table:
The table is:
If we use this values and plot them in the cartesian plane.
We get:
And now if we plot a line that connects the points, we get the graph of the quadratic equation:
Since the problem ask us to find the value of x for which f(x) = 0, we can see both in the table and in the graph that this value is x = 2
Answer:
1 / 16
Step-by-step explanation:
Divide each term by 2.
2 / 2 = 1
32 / 2 = 16.
1 / 16 = 2 / 32
-11 is your answer. To get this, you should follow 'PEMDAS' which stands for P-parenthesis, E-exponents, M-multiplication, D-division, A-addition, S-subtraction. Which ever comes first, is how you solve your problem. Therefore, in your case, add the positives first, then subtract. Hope this helped!