All categories

3 years ago

2x²-26x+84 (Factor COMPLETELY)

Mathematics

1 answer:

Nadya [2.5K]3 years ago

5 0

$\tt{} {2x}^{2} - 26x + 84$

$\tt{}2 {(x}^{2} - 13x + 42)$

$\tt{}2 {(x}^{2} - 6x - 7x + 42)$

$\tt{}2( x \times (x - 6) - 7(x - 6))$

$\tt{}2(x - 6) \times (x - 7)$

You might be interested in

(x-3) (x-4) polynomial

Debora [2.8K]

Answer:

$x^{2} -7x +12$

Step-by-step explanation:

Using the Foil method

you multiply x times x and get $x^{2}$

Then you multiply -4 times X and get -4x

Then you multiply -3 times X and get -3x

then you add -4 and -3 together and get -7x

Lastly you multiply -4 and -3 and get 12

And there you have it

$x^{2} -7x +12$

8 0

3 years ago

What is the slope of the line through (-1, 2) and (-3, -2)

Juli2301 [7.4K]

Step-by-step explanation:

-2 -2/ -3+1 = -4/-2 = 2

you just have to use the slope formula

6 0

3 years ago

Read 2 more answers

Which two transformations must be applied to the graph of y = ln(x) to result in the graph of y = –ln(x) + 64

Neporo4naja [7]

Answer:

A) reflection over the x-axis, plus a vertical translation

6 0

3 years ago

True or false? A correct answer is worth (2 pts). Explain how you know for the additional (2 pts). Using complete sentence for (

PtichkaEL [24]

answer (in words)

FALSE. the coordinate pair (5, 2) is not a solution to the equation $2x+3y=10$ . in order to figure out whether or not the statement is true or false, plug the $x$ and $y$ values from the coordinate pair (5, 2) into the given equation, $2x+3y=10$ . if both sides of the equation end up equal, the coordinate pair is a solution to the equation. if not, the coordinate pair is not a solution to that equation.

(i hope i explained that well enough, i'm better at explaining it algebraically as opposed to putting it into words lol)

answer (algebraic/steps for solving)

first, plug in 5 for $x$ in the equation $2x+3y=10$ .

$2x+3y=10$ ⇒ $2(5)+3y=10$

then plug in 2 for $y$ .

$2(5)+3y=10$ ⇒ $2(5)+3(2)=10$

now your equation is $2(5)+3(2)=10$ . all that's left to do is to simplify. you can do this in whatever order you'd like, but i'll start with multiplying 2 · 5.

$2(5)+3(2)=10$ ⇒ $10 + 3(2) = 10$

multiply 3 · 2.

$10 + 3(2) = 10$ ⇒ $10 + 6 = 10$

add 10 + 6.

$10 + 6 = 10$ ⇒ $16=10$

16 and 10 are not equal, therefore (5, 2) is not a solution to the equation $2x+3y=10$ . in order for a coordinate pair to be the solution to an equation, both sides of the equation need to end up equal after solving and simplifying.

i hope this helps! have a great rest of your day <3

6 0

3 years ago

Using the point (3,1) and a slope of 3,

Mariulka [41]

Answer:

y= -1= 3(x -3)

Step-by-step explanation:

y -y1= m(x -x1)

y -1= 3(x -3)

8 0

2 years ago