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2 years ago

Simplify 6(5x-2) -4 (2x-10)

Mathematics

2 answers:

Oduvanchick [21]2 years ago

6 0

30x-12-8x+40
22x-12+40
22x +28

masha68 [24]2 years ago

3 0

Answer:

$\frac{4}{2+3} \frac{4}{x-3} \frac{x}{y} + \frac{9}{x-6}$

Step-by-step explanation:

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8 less than the product of 5 and -4

Karolina [17]

The answer would be:
5(-4) - 8
-20 - 8
-28

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2 years ago

2v^2-12 =-12v <br> Would really appreciate it loves❤️

Black_prince [1.1K]

For this case we have the following equation:

$2v ^ 2-12 = -12v$

Rewriting we have:

$2v ^ 2 + 12v-12 = 0$

Dividing by 2 to both sides of the equation:

$v ^ 2 + 6v-6 = 0$

We apply the quadratic formula:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

We have to:

$a = 1\\b = 6\\c = -6$

Substituting:

$x = \frac {-6 \pm \sqrt {6 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-6 \pm \sqrt {36 + 24}} {2}\\x = \frac {-6 \pm \sqrt {60}} {2}\\x = \frac {-6 \pm \sqrt {4 * 15}} {2}\\x = \frac {-6 \pm2 \sqrt {15}} {2}$

Thus, we have two roots:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

ANswer:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

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2 years ago

Please someone help me

ipn [44]

Answer:

Step-by-step explanation:

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Select the type of equations<br> A.) Consistent <br> B.) Equivalent <br> C.) Inconsistent

qwelly [4]

Answer:

Step-by-step explanation:

the graph is inconsistent

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Ugo [173]

Answer:

B. Multiply the first equation by 2

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