3 years ago

3x^2 (x^2 - 4x - 2) + (5x^3 + 7x^2+2x+11) plz show work

Mathematics

1 answer:

matrenka [14]3 years ago

5 0

Let's simplify step-by-step.

3x2(x2−4x−4)+5x3+7x2+2x+11

Distribute:

=(3x2)(x2)+(3x2)(−4x)+(3x2)(−4)+5x3+7x2+2x+11

=3x4+−12x3+−12x2+5x3+7x2+2x+11

Combine Like Terms:

=3x4+−12x3+−12x2+5x3+7x2+2x+11

=(3x4)+(−12x3+5x3)+(−12x2+7x2)+(2x)+(11)

=3x4+−7x3+−5x2+2x+11

Answer:

=3x4−7x3−5x2+2x+11

You might be interested in

Phoebe, andy and polly share €270

jeka94

Answer:

Polly=30

Andy=60

Phoebe=180

Step-by-step explanation:

Polly=x

Andy=2x

Phoeby 3(2x)=6x

x+2x+6x=270

9x=270

x=30

Polly=x=30

Andy = 2x=60

Phoebe=6x=180

7 0

3 years ago

Can someone please help me?the question is in the picture. Thank you

kaheart [24]

Answer:

Step-by-step explanation:

The two triangles are congruent because they have three rispective side congruent

AB and AD are both radiuses and AC is in common

so m arc BC is 78 degrees

8 0

3 years ago

Axis of symmetry for f(x) = -2x2 + 20x -42

Ksenya-84 [330]

For the function $f(x)=2x^2 +20x-42$

We can use the formula for the axis of symetry, which is $x= \frac{-b}{2a}$

With the values substituted, we get...

$\frac{-20}{2(-2)} =5$

Therefore the axis of symmetry is $x=5$

8 0

3 years ago

Read 2 more answers

If you and a guy have been arguing lately and he’s friends with your ex best friend and she tried to get him to break up with yo

sashaice [31]

Answer: leave him

Step-by-step explanation:

5 0

3 years ago

How many solutions does the following equation have? <br>-2z+10+7z=16z+7

BARSIC [14]

Make all a and constant number in different side
10-7=16z-7z+2z
3=11z
z=3/11

7 0

3 years ago

Read 2 more answers