Solve x2 + 5x + 6 = 0

Answers

Answer 1
Answer:

Answer:

Use the quadratic formula

   =−±2−4√2

x=−b±b2−4ac2ax=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}x=2a−b±b2−4ac

   ​​

   Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

   2+5+6=0

   x2+5x+6=0x^{2}+5x+6=0x2+5x+6=0

   =1

   a=1a={\color{#c92786}{1}}a=1

   =5

   b=5b={\color{#e8710a}{5}}b=5

   =6

   c=6c={\color{#129eaf}{6}}c=6

=−5±52−4⋅1⋅6√2⋅1

2

Simplify

3

Separate the equations

4

Solve

Solution

=−2=−3

Step-by-step explanation:

Answer 2
Answer:

Answer:

x= - 2 or x = - 3

Step-by-step explanation:

x^(2) +5x+6=0\nFactorise\n(x^(2) +3x)(+2x+6)=0\nx(x+3)+2(x+3)=0\n(x+2)(x+3)=0\nx+2 = 0 or  x+3=0\nx=-2 or x=-3


Related Questions

An auto weighing 2,500 pounds is on a street inclined at 10 with the horizontal. Find the force necessary to prevent the car from rolling down the hill. Round your answer to the nearest whole number. Do not use a space or decimal in your answer or it will be marked wrong.
The united states government produced about 10.25 billion pennies one year. how is 10.25 written in scientific notation? that same year, about 3.0×10^7 half-dollars were produced.how many more pennies were produced that year than half-dollar? explain how u know
PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!Marty is 3 years younger than 6 times his friend Warren's age. The sum of their ages is greater than 11.What is the youngest age Warren can be?
Which is 216 written as a power of a number? a. 6^3b. 3^6C. <------108^2d. 72^3
Which pair of angles listed below are adjacent angles?Parallel Lines and Transversals A. 1 and 2 B. 1 and 3 C. 1 and 4 D. 2 and 3

PLEASE HELP!

Identify the center and radius of the circle (x+4)^2 + (y-2)^2=16

Answers

The equation for a circle is x^2+y^2=r^2 so the radius is the square root of 16 which is 4. Then you take y-2 and set it equal to 0. This gives you y=2 as the y coordinate of the center. You then set x+4 equal to 0 which gives you x=-4 which is the x coordinate of the center. So the radius is 4 and the center is at (-4,2)

Find the value of z in parallelogram BCDE.

Answers

3z = z + 22
2z = 22
z = 11

Help me -30=5(x+1)−30=5(x+1) x=

Answers

x=-1
i think that’s what it is

Answer:

X=-7

Step-by-step explanation:

Divide then subtract to get x by itself

-30=5(x+1)

Divide each side by 5= -30/5=5(x+1)/5

-30=x+1

-6=x+1

-6-1=x+1-1 Subtract one to get x by itself

-6-1=x+1-1 (cross out both x's.

-6-1=x

Hope this helped

Use an area model to multiply (3x+7)(4x+5).
Fill in the blanks with the correct numbers.

Answers

Answer:

12^2 + 43x + 35

Step-by-step explanation:

(3x+7)(4x+5)

=(3x+7)(4x+5)

=(3x)(4x)+(3x)(5)+(7)(4x)+(7)(5)

=12x2+15x+28x+35

=12x2+43x+35

Y varies directly with X. if y = y when X= -4, find the constant of of proportionality

Answers

y = kx
6=k(-4)
6/-4 = k
-3/2 = k

The multiplication property of equality could be used to solve which of the following equations? A. (X+2)(x-3)=0 B. m+7= -12 C. b/(-2) = 18 C. -3+y=7

Answers

I would have to say the answer is C.

The multiplication property of equality is basically multiplying the same quantity on both sides of the equation and this can be done only on choice C.

Hope this helps.

Answer:

Your answer should be C.

Step-by-step explanation: