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lora16 [44]
3 years ago
15

Which method is the most effective method to use to solve x^2+4x+3=0

Mathematics
2 answers:
lukranit [14]3 years ago
6 0

Answer:

Completing the square.

Step-by-step explanation:

since there is no "a" term and the bx term is even, completing the square is your best bet.

miss Akunina [59]3 years ago
4 0

For this case we have as a simpler method the factorization. We must find two numbers that multiplied as a result +3 and added as a result +4.

These numbers are:

3 and 1.3 + 1 = 4\\\\3 * 1 = 3

So, we have to:

x ^2 + 4x + 3 =\\(x + 3) (x+1)

Answer:

(x + 3) (x + 1)

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pishuonlain [190]

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True

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3 0
3 years ago
A rectangle has a height of 4 and a width of x2 + 3x + 2.
otez555 [7]
<h3><u>Given</u>:</h3>
  • A rectangle has a height of 4 and a width of x² + 3x + 2.

<h3><u>To find</u>:</h3>
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<h3><u>Solution</u>:</h3>

Hence, we know that area of rectangle is equals to the product of length and breadth.

Therefore, the area of rectangle is,

= 4 \times( {x}^{2}  +3x + 2 ) \\   = 4({x}^{2}  + 3x + 2) \\  =   \green{ \boxed{4 {x}^{2}  + 12x + 8}}

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