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2 years ago

9d-4d-2d+8=-3d help pls

Mathematics

1 answer:

goblinko [34]2 years ago

6 0

Answer:

-8/3 = d OR -2 2/3

Step-by-step explanation:

9d-4d-2d+8=-3d Well first combine all like terms

3d+8=-3d Now isolate the variable by subtracting 4d from both sides

3d(-3d) + 8= -3d (-3d)

8= -3d Divide both sides by -3

-8/3 = d OR -2 2/3

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Read 2 more answers

8x2 − 5 + 7x4 − 9x − x5

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Answer:

$=-\left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)$

Step-by-step explanation:

Factor out comon Term -1

$=-\left(x^5-7x^4-8x^2+9x+5\right)$

Factor $x^5-7x^4-8x^2+9x+5:\quad \left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)$

$x^5-7x^4-8x^2+9x+5$

Use the rational root theorem

$a_0=5,\:\quad a_n=1$

The dividers of $a_{0}$ : 1, 5, The dividers of $a_n$ : 1

Therefore, check the following rational numbers: ± $\frac{1,\:5}{1}$

$\frac{1}{1}$ is a root of the expression, so factor out $x-1$

$=\left(x-1\right)\frac{x^5-7x^4-8x^2+9x+5}{x-1}$

$\frac{x^5-7x^4-8x^2+9x+5}{x-1}=x^4-6x^3-6x^2-14x-5$

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3 years ago

Which number is equal to 7times 100+2times 1over 10+5times 1over 100?????????

Sergeu [11.5K]

7*100+2*1= 702
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i hope that is really does help if it don't i am sorry

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3 years ago