Calculus

x2 + 13x + 12

= (x + 1)(x + 12)

Add 12 to each side: a = 36 + 12 = 48

84 * 2.2 / 14 = 13.2

This answer was calculated according to the order of operations.

Rule 1: First perform any calculations inside parentheses.

Rule 2: Next, from left to right, do all multiplications and divisions.

Rule 3: Last, from left to right, do all additions and subtractions.

144

'3x' means 'three times', and '4x' means 'four times'. '4x' is obviously rather greater than '3x', but neither will bring an object ten miles away into your back garden.

Depends what the food source is. Many products can be steam sterilized using a safesteril process. Google safsteril

254,560,000

This question does not make sense. An object with different measurements for length , breadth and height cannot be a cube. And if the measurements are not l, b and h but something else then there is no way of calculating the size of the object.

I am thinking you must mean x^2-4x+3 otherwise it would be x^2-1 which would factor as (x+1)(x-1).
In any case, it factors as (x-3)(x-1). Just look at the last number, 3 and note it has factors 3 and 1. Now need those factors to add up to -4 and their product to be positive. We must pick -1 and -3.

x - 13 = 5

x = 18

(x^2 - y^2)

If: 2x2-3x+1 = 0

Then: x = 1 or x = 1/2

If we start with x2 + 4 = 0, the next conclusion is that x2 = -4. All real numbers have a positive result when multiplied by themselves, so therefore we are dealing with an imaginary number. The square root of minus four is 2i.

One must be careful when using infinity in math. Infinity is a concept - not a value. Sometimes, we may be tempted to try treating infinity as a value or a variable. Whenever we want to use infinity in math, we generally do so through the concept of limits.

For example, instead of saying:

1/∞ = 0

We instead say:

lim 1/x = 0

x→∞

The use of limits allows us to use infinity without falling into the trap of attempting to do arithmetic with infinity, which is not defined. In calculus, we use limits and L'Hopital's rule to get around this, and allows us to evaluate functions which simplify to an indeterminate form (0/0, ∞/∞, 0*∞, 0^0, ∞^0 and ∞ - ∞).

Sometimes we seemingly treat infinity as a value when describing asymptotes or end behavior of a function, for example:

lim 1/x = ∞

x→0+

It is important to realize that we are not saying that 1/0 = ∞, but we are ACTUALLY saying:

"As x approaches 0 from the right, 1 / x approaches infinity."

There is no answer to this (for any value of x)

That's because x-x = 0

So x-x-7 is always -7, and never 0

2X - 3 = 5

add 3 to each side

2X - 3 + 3 = 5 + 3

2X = 8

divide each side integer by 2

(2/2)X = 8/2

X = 4

--------------check in original equation

2(4) - 3 = 5

8 - 3 = 5

5 = 5

checks

4x + 3 = 16

Therefore, 4x = 13

x = 13/4

Therefore, x = 3.25

If y = y + x then x must be 0

Otherwise the equation is meaningless.

(128 and 1/3) square feet

If you mean solve for X:

3x + 52x + 1 = 0

55x = -1

x = -0.02

x = 2, y = 3

2 - (y + 2) = 3y

Remove brackets: 2 - y - 2 = 3y

Combine like terms: 0 = 4y

Divide both sides by 4: 0 = y