Question

Find the sum: (х2 + 2x+3) + (3х2 +х+ 1)

ОА. 3x4 + 4х + 3
ОВ. 4х2 + 3x+4
Нам ана на
е
агаарын
Ос. 4х3 + 3х + 4
оо
OD. 4x4 + 4х + 3

Answer 1

B) 4x^2 + 3x + 4

Explanation:

(x^2 + 2x +3) + (3x^2 +x + 1)

Remove unnecessary parenthesis

x^2 +2x + 3 + 3x^2 + x + 1

Collect like terms

4x^2 + 3x +4

Answer 2

option b

Explanation:

(х2 + 2x+3) + (3х2 +х+ 1)

we sum the terms of equal variables

х2 + 3х2 +2x +х+ 1

4x2+3x+4