(x + 1)(2x² + 3x - 1)
(2x³ + 3x² - x + 2x² + 3x - 1)
(2x³ + 3x² + 2x² - x + 3x - 1)
2x³ + 5x² + 2x - 1
This is a simple example:-
x + 9
------------------------------
x - 1 ) x^2 + 8x - 9
x^2 - x subtract
------------
9x - 9
9x - 9
----------
..........
First divide x into x^2 to give x which goes above
Then multiply x - 1 by x to give x^2 - x
Subtract this fro x^2 + 8x gives 9x
Bring down the - 9 then divide x into 9x
and finally multiply x - 1 by 9 to give 9x - 9
Finally subtract and you sre done. There is no remainder as x - 1 is a factor of x^2 + 8x - 9.
The polynomial must be in descending powers of x . If one is missing you insert it with a coefficient of zero before you start the division.
for example if you have x^3 - 3x + 12 you write it as
x^2 + 0x^2 - 3x + 12
Answer:
Length of three dimensions of the cube is
<u>6</u>cm.
What is the area of the base of a cube of sides 2.5m?
<u>37.5m²</u>
Answer:
A=103.13cm
Step-by-step explanation:
Formula: A= c^2/4π (C being the circumference and ^2 means it's squared)
Plug in what you know: 36^2/4π
1296/4π= 103.13
