What number needs to be added to both sides of the equation in order to complete the square?
Answers
To complete the square for the equation X^2 + 16X + __ = 18 + __, we need to add 64 to both sides to get the equation X^2 + 16X + 64 = 18 + 64.
To complete the square for the given quadratic equation, we need to add a specific value to both sides of the equation. That specific value is the square of half the coefficient of the X term. In this case, the X term's coefficient is 16, so we need to take half of 16 (which is 8) and square it (which is 64).
So, the number to be added to both sides of the equation is 64.
The completed square equation then becomes: X^2 + 16X + 64 = 18 + 64.
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The probable question may be:
What number needs to be added to both sides of the equation in order to complete the square?
X^2+16X+____=18+___
Answer:
16
Step-by-step explanation:
Given x^2 + 16x = 18. Complete the square:
Take half of the coefficient of x (in other words, take half of 16) and square the result: we get 8^2 = 64.
Add 64, and then subtract 64 from x^2 + 16x + 64 = 18 + 64
Then (x + 8)^2 = 82. From this point on it's easy to find the roots, but we were not asked to do so.
The desired number is 64; note that it is (16/2)^2.
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Using a directrix of y = −3 and a focus of (2, 1), what quadratic function is created
Whic of these is an irrational number A.0 B1.9 C.? D.1/2
Answers
Answer:
your answer is 6
Step-by-step explanation:
well order of operations
first parentheses
-10/5+2(-2)^2
next exponents
-10/5+2(4)
now divide/multiply from left to right
-2+2(4)
-2+8
and lastly add/ subtract from left to right
6
Answers
y=x(2z²-y)
if 2z²-y ≠0 then
x=y/(2z²-y)
if you know the value of y and the value of z ,
you will be able to find a numerical value of x.
Y=2 x XZ2
XZ2-XY
XY=X x Y
−48
48
144
Unsubs
Answers
perfect square trinomial: a² + 2ab + c²
a² = x² ⇒ x * x
2ab = -24x ⇒ 2(-12)x
c² = (-12)² = 144
x² - 24x + 144
The value of c to create a perfect square trinomial is 144.
Answer:
144
Step-by-step explanation:
Answers
FV =$ [85(1+0.85)^8]
FV=$ [85(1.85)^8]
FV= $ 222.21
A. 13
B. 6
C. 5
D. 8
Answers
Answers
Multiply each side by 3 :
(x+2) = 24/5
Remove the parentheses on the left side:
x + 2 = 24/5
Subtract 2 from each side: (Express '2' as '10/5')
x = 24/5 - 10/5 = 14/5 = 2.8
x=14/5
It is this because you would have to first multiply each side by 3, making the equation x+2=24/5, or 4 and 4/5.
Then you would have to subtract two from each side, making x=2 and 4/5, or 14/5