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2 years ago

Please help. Click to view picture. Algebra question. HELP ME PLEASE ASAP

Mathematics

1 answer:

Ugo [173]2 years ago

4 0

Second answer if it still helps

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Select the correct answer

Paladinen [302]

Answer:

a) We get $\mathbf{A+B=x^2-2x+1}$

So, Is the result of A+B is a polynomial:Yes

b) We get $\mathbf{A-B=6x^3-7x^2+2x-1}$

So, Is the result of A-B is a polynomial:Yes

c) We get $\mathbf{A.B=9x^6+21x^5-18x^4+9x^3-3x^2}$

So, Is the result of A.B is a polynomial:Yes

Step-by-step explanation:

We are giving the polynomial equations:

$A= 3x^2(x-1)\\B=-3x^3+4x^2-2x+1$

We need to find

a) A+B

$A+B=3x^2(x-1)+(-3x^3+4x^2-2x+1)\\A+B=3x^3-3x^2-3x^3+4x^2-2x+1\\A+B=3x^3-3x^3-3x^2+4x^2-2x+1\\A+B=x^2-2x+1\\$

So, we get $\mathbf{A+B=x^2-2x+1}$

So, Is the result of A+B is a polynomial:Yes

b) A-B

$A-B=3x^2(x-1)-(-3x^3+4x^2-2x+1)\\A-B=3x^3-3x^2+3x^3-4x^2+2x-1\\A-B=3x^3+3x^3-3x^2-4x^2+2x-1\\A-B=6x^3-7x^2+2x-1\\$

So, we get $\mathbf{A-B=6x^3-7x^2+2x-1}$

So, Is the result of A-B is a polynomial:Yes

c) A . B

$A.B=3x^3(-3x^3+4x^2-2x+1)-3x^2(-3x^3+4x^2-2x+1)\\A.B=9x^6+12x^5-6x^4+3x^3+9x^5-12x^4+6x^3-3x^2\\A.B=9x^6+12x^5+9x^5-6x^4-12x^4+3x^3+6x^3-3x^2\\A.B=9x^6+21x^5-18x^4+9x^3-3x^2$

So, we get $\mathbf{A.B=9x^6+21x^5-18x^4+9x^3-3x^2}$

So, Is the result of A.B is a polynomial:Yes

7 0

2 years ago

What is not equivalent to 65%

Nadya [2.5K]

We need the answers?

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3 years ago

Read 2 more answers

Some numbers are 1/4 as large as another number. the difference of a number is 12.

Eddi Din [679]

Answer:

Step-by-step explanation:

x = ¼y

y - x = 12

y - ¼y = 12

¾y = 12

y = 16

x = ¼y = 4

3 0

3 years ago

The gas tank of a riding mower holds 5 liters of gas how many 5 liter gas tanks can you fill from a full 20 liter gas tank

Dima020 [189]

You can fill up 4 tanks because 20 divided by 5 is 4

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3 years ago

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Brian was thinking of a number. Brian adds 3 then divides by 2 to get an answer of 2.what was the original answer

Andreas93 [3]

Reverse engineer

2*2-3=1

so its 1

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2 years ago