Someone please help me ! I suck at plotting inequalities and when are you suppose to keep the circle open or close ?

Mathematics

2 answers:

wariber [46]2 years ago

8 0

When it has the line under the sign that means the dot is closed. For example that is closed because it x is greater than or equal to -1, so if it has a line under the > sign that means the dot is closed

gulaghasi [49]2 years ago

5 0

keep the circle open if it there is no equal sign underneath the greater than or less than, that is because if there is no equal sign, then that value is not included, so it is open. If there is, then the value is a part of the solution, so it is closed circle to represent that it is part of the line.

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Use the formula a2 – b2 = (a b)(a – b) to factor completely. what are the factors of 36x8 – 49? (9x4 – 1)(4x2 49) (36x4 – 7)(x2

zimovet [89]

The factors of 36x^8 – 49 are (6x^4-7)(6x^4+7).

We are given to factor the following polynomial completely:

36x^8 – 49.

We have to find the complete factor of the given polynomial.

Completely factor means to continuously factor terms until they are in simple terms, meaning you are no longer able to factor

<h3>What is the formula for (a^2-b^2)?</h3>

The formula for (a^2-b^2)= (a+b) (a-b).

Therefore applying the given formula we have,

$F=(6x^4)^2-7^2$