X to the second-8x+7=0
2 answers:
If your'e looking to complete the square, then here's how you do it:
1.) Subtract 7 from each side:
2.) Take half of the value of B, which is 4, then square it to get C
3.) Now you should have
, because what you do to one side you have to do to the other
4.) Take the value of
and 4, and plug them into an ordered pair: 
Now take the square root of both sides which is equal to
±
5.) Now subtract 4 from each side to isolate x:
<span>±3
6.) Solve: </span>
& 
Final Answer:
& 
Hope this helps!!
1.) Subtract 7 from each side:
2.) Take half of the value of B, which is 4, then square it to get C
3.) Now you should have
4.) Take the value of
Now take the square root of both sides which is equal to
5.) Now subtract 4 from each side to isolate x:
6.) Solve: </span>
Final Answer:
Hope this helps!!
You might be interested in
The path is in the shape of a parabola, the horizontal length is 24, so the middle point is at x=12, the symmetry line is x=12, the highest point (the vertex) is at (12,6)
the equation in vertex form is y=a(x-12)²+6
next, find a by using either one of the two points, the starting point (0,0) or the end point (0,24). obviously (0,0) is easier to calculate:
0=a(0-12)² +6
a=-1/24
so the quadratic equation is y=-
the equation in vertex form is y=a(x-12)²+6
next, find a by using either one of the two points, the starting point (0,0) or the end point (0,24). obviously (0,0) is easier to calculate:
0=a(0-12)² +6
a=-1/24
so the quadratic equation is y=-
Answer:
-5-11x+2
Step-by-step explanation:
-4-6x-1-
-5x+3=-5
-11x+2