How to solve the quadratic equation by factoring x^{2}+4x+3=0

2 answers:

7 0

X² + 4x + 3 = 0
x² + 3x + x + 3 = 0
(x + 1)(x + 3) = 0
x + 1 = 0 or x + 3 = 0
<u> - 1 - 1</u> <u> - 3 - 3</u>
x = -1 x = -3

Trava [24]4 years ago

5 0

$x^2+4x+3=0 \\\\ x^2+x+3x+3=0 \\\\ x(x+1)+3(x+1)=0 \\\\ (x+1)(x+3)=0 \\\\\\ x+1=0 \ \ \Longrightarrow \boxed{x=-1} \\\\ x+3=0 \ \ \Longrightarrow \boxed{x=-3}$

You might be interested in

Elsa went to a baseball game. The game started at 9:42 AM, and it was 3 hours 37 minutes long. When did the game end?

morpeh [17]

Answer:

1 : 19 PM

Step-by-step explanation:

9 + 3 = 12

42 + 37 + 79

12:00 + 1 hour and 19 minutes

1 : 19 pm

4 0

3 years ago

PLEASE HELP !!!! What is the slope of the line passing through the points (1, −5)(1, −5) and (4, 1)(4, 1)?

valentinak56 [21]

Here's an example... So, in our last example... In the point ( -2, -1 ), x1 = -2 and y1 = -1 ... and, in the point ( 4, 3 ), x2 = 3 and y2 = 3 m = ( y2 - y1 ) / ( x2 - x1 ) = ( 3 - ( -1 ) ) / ( 4 - ( -2 ) ) = 4 / 6 = 2 / 3 But, notice something cool... The order of the points doesn't matter! Let's switch them and see what we get: In the point ( 4, 3 ), x1 = 4 and y1 = 3 ... and, in the point ( -2, -1 ), x2 = -2 and y2 = -1 m = ( y2 - y1 ) / ( x2 - x1 ) = ( -1 - 3 ) / ( -2 - 4 ) = -4 / -6 = 2 / 3 ... Same thing! Let's try our new formula with the second example in the last lesson: It was a line passing through ( -1, 4 ) and ( 2, -2 ) m = ( y2 - y1 ) / ( x2 - x1 ) = ( -2 - 4 ) / ( 2 - ( -1 ) ) = -6 / 3 = -2

4 0

3 years ago

Answer and explain deeply thank you so much! I’ll mark brainliest

Elis [28]

Let me know if this doesn’t make sense