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3 years ago

5

What is the simplified expression for-3cd-d(2c-4)-4d

1 answer:

Elden [556K]3 years ago

8 0

Answer: 0 -5cd.

Hope this helps :)

- Martiinez :)

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Points giveaway<br><br>2+3=?

Nata [24]

Answer:

5

Step-by-step explanation:

2+3
5

Hence it is correct.. thanks for points.

5 0

2 years ago

Read 2 more answers

Factor completely: 2x3 + 6x2 + 10x + 30

qwelly [4]

The complete factor from:

2x3 + 6x2 + 10x + 30
2x(x+3) + 10(x+3)
(x+3)(2x+10)
2(x+5)(x+3)

hope this help

3 0

3 years ago

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PLEASE HELP ME!!!!!!!!!

vitfil [10]

<h2>1)</h2>

$(x - 4) {}^{2} - 28 = 8 \\ (x - 4) {}^{2} = 8 + 28 \\ (x - 4) {}^{2} = 36$

This must be true for some value of x, since we have a quantity squared yielding a positive number, and since the equation is of second degree,there must exist 2 real roots.

$\sqrt{(x - 4) {}^{2} } = ± \sqrt{36} \\x - 4 = ±6 \\ x _{1}- 4 = 6 \: \: \: \: \: \: \: \: \: \: x _{2}- 4 = - 6 \\ x_{1} = 6 + 4 \: \: \: \: \: \: \: \: \: \: x_{2} = - 6 + 4 \\ x_{1} = 10 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x_{2} = - 2$

<h2>2)</h2>

Well he started off correct to the point of completing the square.

$(x - 3) {}^{2} = 16 \\ x - 3 = ±4 \\ \: x_{1} - 3 = 4 \: \: \: \: \: \: \: \: \: \: \: \: x_{2} - 3 = - 4 \\ x_{1} = 7 \: \: \: \: \: \: \: \: \: \: x_{2} = - 1$

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1 year ago

Sandra exerci 2/3 hours every day for two weeks while she was on vacation how many hours did Sandra exercise during her vacation

vagabundo [1.1K]

I think the us 1 1/3. 2/3 x 2/1=4/3=1 1/3. Hope it helps and I hope it right.

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3 years ago

Factorise 3a2 (squared) - 7a<br><br> What’s the answer?<br> Don’t use the calculator.

sweet-ann [11.9K]

Step-by-step explanation:

${3a}^{2} - 7a \\ a(3a - 7) \\ \\ \\ \\ \\ \\ hope \: it \: helps \\ stay \: safe \: healthy \: and \: happy$

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2 years ago