X² + 10x +2 = 0 .Complete the square of (x² + 10x + ??)
We know that (10x) is equal to twice the square root of the 1st (x) by ??
10x = 2.x.(??) and ?? = 5 and its square is 25. Then I have to add 25 and subtract 25 so that not to change the equation:
(x² + 10x + 25) -25 +2 =0
(x+5)² -23
Answer:
the queation says from ques no 2 so you should take a full picture
Answer:
Step-by-step explanation:
The negative in front of the parenthesis changes the signs of the numbers and variables inside the parenthesis. We can rewrite as
4 - x - 1 = 6 and
3 - x = 6 so
- x = 3 and
x = -3
Answer:
the other point could be 2.8
Step-by-step explanation:
in circle values of both x and are almost equal in magnitude
since 2.8 is closest to 3 i magnitude
hence 2.8 will be correct option
this point will lie in third coordinate
as third coordinate has points
(-x,y)
and coordinates of points lie on the circle are
(-3,2.8)
