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evablogger [386]
3 years ago
5

X² + 4x + 3 How is this solved step by step it needs to be in factored form

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0

Answer:

\large\boxed{x^2+4x+3=(x+3)(x+1)}

Step-by-step explanation:

x^2+4x+3\\\\\text{We are looking for a and b, for which a + b = 4 and (a)(b) = 3}\\\\\text{a=3,\ b=1}\\\\=x^2+3x+1x+3\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=x\underbrace{(x+3)}_{(*)}+1\underbrace{(x+3)}_{(*)}\qquad\text{use the distributive property}\\\\=\underbrace{(x+3)}_{(*)}(x+1)

Leni [432]3 years ago
4 0
Do c=b meaning that you need to number that multiply to c but the sum of those numbers give u the value of b. The answer would be (x+3)(x+1) because both are positive.
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4 0
3 years ago
Read 2 more answers
Yes or no ? i need help please
Snowcat [4.5K]

Answer:

yes

Step-by-step explanation:

3 0
3 years ago
Help for brainiest and extra points !!!
aalyn [17]

Answer:

1. A, because 4(2)=8. 2 is the x.

2. B, because 2.5 x 4 = 10, which makes sense.

3. B, because 5x is the amount that you want to put into equal parts and the 3 is just being subtracted from the amount of the equal parts from the 5x.

4. C.

Step-by-step explanation:

7 0
3 years ago
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murzikaleks [220]
F(x) = (x² - 3x - 10)(x + 4) becomes (x - 5)(x + 2)(x + 4) when completely factored. Now set each binomial equal to zero. 

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Your zeros are at x = - 4, - 2, and 5. Or at (- 4, 0), (- 2, 0), and (5, 0). 
7 0
3 years ago
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frez [133]

Answer:

30

Step-by-step explanation:

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