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Example 1
Add 4x4 + 3x3 - x2 + x + 6 and -7x4 - 3x3 + 8x2 + 8x - 4
We write them one below the other as shown below.
4x4 + 3x3 - x2 + x + 6
(+)
-7x4 - 3x3 + 8x2 + 8x - 4
-3x4 + 0 + 7x2 + 9x + 2
Example 2
Add 5x5 - 6x3 + 4x2 + 3x - 7, 3x5 - 2x4 + 3x2 + 6x - 1
and- 3x4 + x3 - 5x2 + 7x + 4
5x5 + - 6x3 + 4x2 + 3x - 7
3x5 - 2x4+ + 3x2 + 6x - 1
- 3x4+ x3 - 5x2 + 7x + 4
8x5 - 5x4 - 5x3 + 2x2 + 16x - 4
Example 3
Subtract -7x4 - 3x3+ 8x2 + 8x - 4 from 4x4 + 3x3 - x2 + x + 6
4x4 + 3x3- x2 + x + 6
(-)
11x4 + 6x3 - 9x2 - 7x + 10
In this problem, in some expressions we do not find terms of certain powers. They have been left as blanks.
Example 4
Subtract the first from the second and sum the difference with the third expression. The expressions are given below.
5x5 - 6x3 + 4x2 + 3x - 7, 3x5 - 2x4 + 3x2 + 6x - 1 and -3x4 + x3 - 5x2 + 7x + 4.
The difference of first two expressions is given by
3x5 - 2x4 + 3x2 + 6x - 1
5x5 - 6x3 + 4x2 + 3x - 7
-2x5 - 2x4 + 6x3 - x2 + 3x + 6
The sum of the difference between the first two expressions and the third expression will be as shown below.
(+) - 3x4+ x3 - 5x2 + 7x + 4
-2x5 - 5x4+ 7x3 - 6x2 + 10x + 10
The perimeter of Andrew''s rectangular room is 44 feet. What equation was used to find the perimeter?
IN THIS WE HAVE TO ADD THE PROBABILITY of 3 and 5 occuring separtely and subtract prob. of 3 and 5 occuring together therefore p=(166+100-33)/500=233/500=0.466
Maria has a slice of pizza that is1/6 the pizza. Ben has a slice of pizza that is 1/3 of the pizza . Maria''s slice is bigger .draw pizzas to show how this possible .
Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers
It is known that a radioactive material decays at a rate proportional to the amount present.If after a period of 12 years,a 2g piece of radium weighs 1.99g.How long will it be befo
13 1/4 34 56/89
(1 0 3 21 -1 1 -1 1) find A-1
Given y = f(x) = x 2 + 2x +3 a) Use the definitional formula given below to find the derivative of the function. b) Find the value of the derivative at x = 3.
if area of a rectangle is 27 sqmtr and it perimeter is 24 m find the length and breath#
An irrigation system uses a straight 30m sprinkler pipe which is capped at one end and arranged so that all water is released directly downwards and pivots around a central point.
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