Yes you are right it's C)
Notice that f(-2) = (-2)³ +2( - 2)² + 4(-2) + 8 =0
Then x³+2x²+4x+8 is divisible by (x+2)
Perform this division & you will get:
x³+2x²+4x+8 = (x+2)(x²+4)
The root of (x+2) is the value that render it nil, that is x=-2
The root of (x²+4) are imaginary (not real) because
x²+4 =0 ==> x² = -4 & x=√-4 or x= 2i (nor real).
Hope you understood the reasoning
Answer:
Ok hi im good at math just let me do this in ten mins ok
Step-by-step explanation:
Answer:
234234984
Step-by-step explanation:
X = r - h/y ; Solve for h & r
Let's first solve for h :)
Add h/y to both sides.
h/y + x = r
So, r = h/y + x
Now, let's solve for h.
x = r-h/y
Subtract r from both sides.
-r + x = -h/y
Multiply both sides by y.
y(-r + x) = y(-h/y)
Simplify.
-ry + xy = -h
Divide both sides by -1.
ry - xy = h
So, h = ry - xy
~Hope I helped!~
Answer:
4 × 10^6
Step-by-step explanation:
8 × 10^24/2 × 10^18
to cut it short, subtract 18 from 24 ( the exponent) = 6
and divide 8 by 2 = 4
<u>8 × 10^24</u>
2 × 10^18
= 4 × 10^6
