Please help me! I will mark brainliest! I don't get polynomials and all that other stuff. So this question is really hard.

2 answers:

5 0

$\bf (x-4)(x^2-5x-6) \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} (x)(x^2-5x-6)\implies &x^3-5x^2-6x\\\\ (-4)(x^2-5x-6)\implies &-4x^2+20x+24 \end{cases} \\\\\\ x^3-5x^2-6x-4x^2+20x+24\implies x^3-5x^2-4x^2-6x+20x+24 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{\textit{adding like-terms}}{x^3-9x^2+14x+24}~\hfill$

so, notice, to multiply a binomial and a trinomial, simply multiply each term of either one by one.

(a+b)(c+d+e)

a(c+d+e)

+b(c+d+e)

and then combine them and add any like terms.

frez [133]3 years ago

3 0

Answer:

Using sum and product method you can simplify the top as:

x^2-4x-5 = (x-5)(x+1) and x^2-5x+4 = (x-4)(x-1)

The x-4 and the x+1 cancel each other out and you will be left with

(x-5)/(x-1)

Step-by-step explanation:

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Please answer fast!!!!!

BlackZzzverrR [31]

Answer:

x = 2

Step-by-step explanation:

note that 4096 = $8^{4}$ , then

$8^{2x}$ = $8^{4}$

Since bases on both sides are equal, both 8 , then equate the exponents

2x = 4 ( divide both sides by 2 )

x = 2

6 0

3 years ago

Read 2 more answers

Which is terminating or non terminating<br>..........125/441

nalin [4]

This is non - terminating value.

5 0

3 years ago

Read 2 more answers

You leave a 15% tip of $3.12. How much was the bill?

dangina [55]

Answer:

$3.61 cents

Step-by-step explanation:

Given the following question:

15% of 3.12

To find the answer we use the formula to calculate percentages, then we add that answer to the initial bill.

$\frac{p\times n}{100}$
$\frac{15\times3.12}{100} =15\times3.12=46.8\div100=0.468$
$=0.468$

<u>Round:</u>
$0.468$
$8 > 5$
$0.47$
$t=0.47$

<u>Now add:</u>
$3.14+0.47=3.61$
$=3.61$

After leaving a 15% tip, the total amount you would pay is "$3.61 cents."

Hope this helps.