All categories

2 years ago

Need help with this algebra problem ALG 2A

Mathematics

1 answer:

nikdorinn [45]2 years ago

5 0

Answer:

If you are trying to simplify the expression, the answer is -14x^2+8x-37

Step-by-step explanation:

First, keep removing the parentheses.

(x-1)(2-x)+(x^2+5)(x-7) -x^2(x+6)

Next, try expanding the expression.

3x - x^2 - 2+ (x^2+5)(x-7)-x^2(x+6

3x-x^2-2+x^3-7x^2+5x-35-x^2(x+6

3x-x^2-2x^3-7x^2+5x-35-x^3-6x^2

Finally, simplify the expression.

-14x^2 8x-37

I hope this helped to answer your question.

You might be interested in

A triangle has two sides of length 9 and 14 what is the smallest possible whole number length for the third side

melisa1 [442]

Let the third side = x.

The sum of any two sides must be greater than the third side

14 + 9 > x

23 > x

14 + x > 9

x > -5

9 + x > 14

x > 5

So 5 < x < 23

6 0

2 years ago

Hey anyone know this ?

Sergeu [11.5K]

Answer:

It's an equilateral triangle so the measure of each angle here=60 degrees

s..4x degree=15*4

hence, the value of X=15

<h2>Have a good day Ahead:)</h2>

6 0

2 years ago

Which of the following is not part of the fact family for 15, 8, and 7?

Lena [83]

We need a picture im guessing

8 0

3 years ago

How do i use Scientific notation on these problems? Because I don't know...

saveliy_v [14]

Answer:

Simplify the problems first

Step-by-step explanation:

Before you can convert it to scientific notation, you should simplify it first.

#1 for example:

$(4 \times 10^5)^2\\$

Use PEMDAS to solve the equation:

$(4 \times 10^5)^2\\= 400000^2\\= 160000000000$

So, now we have a super big number. To write it in scientific notation, put a decimal place in the number before the zeroes start. It would be $1.6 \times 10^{11}$ since there are 11 places after the decimal.

8 0

2 years ago

PLEASE HELP According to the stem-and-leaf plot above, how many students scored a

Anna71 [15]

Answer:

Step-by-step explanation:

Do you even know what a stem-leaf plot is?

The scores lower than 80% are:

70, 70, 71, 78, 62, 62, 63, 68, 69, 69, 57, 57, 58, 49, 49, 30, and 21 percent according to the data given. That is 17 scores less than 80 percent.

8 0

2 years ago