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Nesterboy [21]
3 years ago
8

Factor 3x2 - 6x - 9 completely​

Mathematics
2 answers:
Crazy boy [7]3 years ago
7 0
3(x^2-2x-3)
3(x-3)(x+1)
krek1111 [17]3 years ago
5 0

Answer:

3(x-3) (x+1)

Step-by-step explanation:

3x^2 - 6x - 9

Factor out a 3

3(x^2 -2x-3)

Now we factor inside the parentheses

What 2 numbers multiply to -3 and add to -2

-3*1 = -3

-3+1 = -2

3(x-3) (x+1)

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-1/5c+2+c=1/5(10c-20)
Andreyy89

Let's solve your equation step-by-step.

(− 1 /5 )(c)+2+c= 1 /5  (10c−20)

Step 1: Simplify both sides of the equation.

(− 1 /5 )(c)+2+c= 1 /5 (10c−20)

(− 1 /5 )(c)+2+c=( 1 /5 )(10c)+( 1 /5 )(−20) (Distribute)

−1 /5 c+2+c=2c+−4

( −1 /5 c+c)+(2)=2c−4 (Combine Like Terms)

4 /5 c+2=2c−4

4 /5 c+2=2c−4

Step 2: Subtract 2c from both sides.

4/5 c+2−2c=2c−4−2c

−6 /5 c+2=−4

Step 3: Subtract 2 from both sides.

−6 /5 c+2−2=−4−2

−6 /5 c=−6

Step 4: Multiply both sides by 5/(-6).

( 5 /−6 )*( −6 /5 c)=( 5 /−6 )*(−6)

c=5

Answer:

c=5

7 0
4 years ago
What are the vertical asymptotes of the function f(x) = the quantity of 4x plus 8, all over x squared plus 3x minus 4? plz answe
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Answer:

x=1 and x=-4

Step-by-step explanation:

Put it into your calculator, go to graph and look at which points it says ERROR.

4 0
4 years ago
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Step-by-step explanation:

10x=42000

x=4200

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Step-by-step explanation:

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What is the value of -1/6+2/3(9-3/4)-1/2
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