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4 years ago

How do you solve this? 3x(x+4)=0

Mathematics

2 answers:

Lelechka [254]4 years ago

3 0

Answer:

3x=0 or x+4=0

x=0 or x=−4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x2+12x=0

Step 2: Factor left side of equation.

3x(x+4)=0

Step 3: Set factors equal to 0.

3x=0 or x+4=0

x=0 or x=−4

miss Akunina [59]4 years ago

3 0

Answer:

3x^2+12x

Step-by-step explanation:

I can't quite remember but I believe that is the answer

You distribute the 3x into the parenthesis

3x(x)+3x(4)

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What is the sum of (4x2 – 10x + 3) and (-6x2 + 10x + 12)

kykrilka [37]

Answer:

-2x² + 15

Step-by-step explanation:

Step 1: Add like terms

4x² - 6x² = -2x²

-10x + 10x = 0

3 + 12 = 15

Step 2: Rewrite

-2x² + 15

6 0

3 years ago

Can you guys help me? please

mel-nik [20]

Answer:

3 square root 2.

Step-by-step explanation:

I think the answer is b (3 square root 2). the Pythagorean therom states that B^2+ B^2= C^2. we know that c squared is 36. 3 square root 2 is approximately 4.24. ( this squared is 17.98). 17.98 + 17.98 = 35.96. If i round this up, it is 36.

8 0

3 years ago

Determine whether the given value is a solution of the equation.

serious [3.7K]

Answer:

84 is a solution.

Step-by-step explanation:

To find out if 84 is a solution or not, we plug in the value and simplify.

(84)/14 = 6
6 = 6

Therefore, 84 is a solution.

6 0

3 years ago

Nitrogen makes up about 78% of air. If you have 2 L of air, how many liters of nitrogen are in the air?

NemiM [27]

Answer:39%

Step-by-step explanation:

78/100÷2

78/100×1/2

=39

5 0

4 years ago

A blueprint has a scale of one eighth inequals1 ft. On the blueprint, a wall is drawn 2 and three eighths in long. What is the

katrin2010 [14]

19 feet

convert 2 $\frac{3}{8}$ into an improper fraction

2 $\frac{3}{8}$ = $\frac{19}{8}$

hence the length of the wall is 19 feet

8 0

3 years ago

How do you solve this? 3x(x+4)=0​

How do you solve this? 3x(x+4)=0