All categories

3 years ago

What is the simplest form of this expression -x(7x+2)+x^2

2 answers:

7 0

The answer would be -6x ^ 2 - 2x
Equation:
=-x (7x + 2) + x ^ 2
=(-7x ^ 2 -2x) + x ^ 2
Add similar terms,
-6x ^ 2 - 2x

The simplified expression is given by:
-6x ^ 2 - 2x

STALIN [3.7K]3 years ago

5 0

For this case we have the following expression:
-x (7x + 2) + x ^ 2
Rewriting we have:
(-7x ^ 2 -2x) + x ^ 2
Adding similar terms we have:
-6x ^ 2 - 2x
Answer:
The simplified expression is given by:
-6x ^ 2 - 2x

You might be interested in

What are expressions equal to 16a+40

Liula [17]

8a+8a+40
It is equivalent

8 0

4 years ago

3n + 6n -4 = 2n + 2 + 5n

xxMikexx [17]

Answer:

3n +6n-4=2n+2+5n

9n-4=7n+2

9n-7n=2+4

2n=6

n=6÷2

n=3

7 0

3 years ago

What is the quatient of (×3+6×2+11×+6)÷(×2+4×+3

lapo4ka [179]

Answer:

=21+11x

Step-by-step explanation:

3 0

4 years ago

Write an expression equal to 11³

NikAS [45]

Answer:

11x11x11=11³

Step-by-step explanation:

11 to the third means 11 times itself 3 times

3 0

3 years ago

Read 2 more answers

A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an

GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

3 0

3 years ago