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BaLLatris [955]
3 years ago
5

How to factor quadratics with leading coefficient above 1?

Mathematics
1 answer:
kramer3 years ago
5 0
Ax^2 + bx + c — this is your standard formula.

If a is greater than 1, you will want to multiply (a)x(c) next, you will find 2 numbers that multiplied together add up to the value of ac and added together are the value of c.

Next you will input those two numbers in for the value of b, and keep your x with both of the number.

Then you’ll want to factor by parts.


Example:

2x^2 + 7x + 6 = y

2(6) = 12. Two numbers that add up to 7 but multiplied equal to 12 are 4 and 3.

So then it will look like this:


2x^2 + 4x + 3x + 6 = 0

Then factor by parts

2x (x + 2) + 3 (x + 2) = 0

So then your values are

(x + 2)( 2x + 3) = 0

Then your x values are

X = -2
X = -3/2

Hope this helped!!
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emmasim [6.3K]
That means she is in heat or mating, you should probably take her to the vet
3 0
3 years ago
Please help.
natka813 [3]

Answer:

2,4,6 and 8 are all 40degrees that means 1,3,5 and 7 are 140 degrees. 2,4,6, and 8 are at a diagonal that allows them to equal eachother. because 2 is given 40degrees as the angle 4,6 and 8 must also be 40 degrees. a flat line is 180 degrees. 180-40=140

you have vertical angles alternate interior, alternate exterior

Step-by-step explanation:

Vertical Angles: a pair of opposite congruent non-adjacent angles formed by intersecting lines; share a vertex

Alternate Interior: when a transversal intersects two lines, alternate interior angles are on opposite sides of the transversal and on the inside of the given lines

Alternate Exterior: when a transversal intersects two lines, alternate exterior angles are on opposite sides of the transversal and on the outside of the given lines  They are congruent.

5 0
3 years ago
148=3x+3+4x+1 solve
Alborosie

Answer:

X= 144/7

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP!
Citrus2011 [14]

Answer:

x - 3y - 7 = 0

Step-by-step explanation:

We can first write this equation in Point Slope form, and then rearrange it to general form.

Note: the given point is (h,k)

Slope is m.

The equation is:

y-k=m(x-h)

Therefore, the equation in point slope form would be:

y+2=1/3(x-1)

Now, we can change that to general form.

y+2=1/3x-1/3

1/3x-1/3-y-2=0

1/3x-y-2 1/3=0

Multiply everything by 3.

x-3y-7=0

Therefore, the corrrect answer is option 3.

5 0
3 years ago
Advanced question. Who can figure out how you can take an exchange rate which pegs $1.00 US to $1.21 CAD to see how much you wou
xenn [34]

Answer:

$0.83 when solved for (when the actual conversion is done it comes out to be $0.82)

Step-by-step explanation:

We are stating that 1 US = 1.21 CAD

Since they are equal we can assume: \frac{1 US}{1.21 CAD} =1

Assume the number we are looking for is x. x US = 1 CAD.

Since they are equal we can assume: \frac{x US}{1 CAD} =1

Both equations are equal to 1, meaning the equations are equal to each other. So, \frac{1US}{1.21CAD}=1= \frac{xUS}{1 CAD} ⇒⇒⇒⇒ \frac{1US}{1.21CAD}= \frac{xUS}{1 CAD}

Using cross multiplication we get 1US*1CAD=1.21CAD*xUS

We can discard the units (we only needed them to differentiate which currency we were talking about) to get 1 = 1.21x

Solving for x we get x = 1/1.21 = 0.82645

If you wish to round this you would get around 0.83, which is remarkably close to the actual price of 0.82. The reason for difference is in the numbers we use. When we divide 1/1.12131, we get 0.82433, which would round to be 0.82.

Hope this is correct and helps!

5 0
3 years ago
Read 2 more answers
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