Question

Subtract these polynomials. (3x + 2x + 4) (x + 2x+ 1) =

Answer 1

=(3x2 + 2x + 4) - (x2 + 2x + 1)

Combine like terms

=(3x2-x2)+(2x-2x)+(4-1)

=2x2+0+3

The 2x terms cancel each other to 0

=2x2+3

C) 2x2+3 is the answer.

Hope this helps!

Answer 2

Answer:

15x^2+17x+4

Step-by-step explanation:

(3x+2x+4)(x+2x+1)

Combine 3x and 2x to get 5x.

(5x+4)(x+2x+1)

Combine x and 2x to get 3x.

(5x+4)(3x+1)

Apply the distributive property by multiplying each term of 5x+4 by each term of 3x+1.

15x ^2+5x+12x+4

Combine 5x and 12x to get 17x.

15x^2+17x+4

Learn More: brainly.com/question/28956868