Mathematics: (x+y+2)(y + 1) A). y^2+4xy+2 B).xy+4y+x+2 C).y+x+y+2 D).y^2+xy+x+3y+2

135 degrees since all of its sides are congruent. 1080 divided by 8 equals 135 degrees...

(x+y+2)(y + 1) A). y^2+4xy+2 B).xy+4y+x+2 C).y+x+y+2

leilalony2660

20.01.2022

Option D:

(x+y+2)(y+1)=y^2+xy+x+3y+2

Solution:

Given expression:

(x+y+2)(y+1)

To expand the expression:

(x+y+2)(y+1)

Multiply each term of the first term with each term of the second term.

(x+y+2)(y+1)=x(y+1)+y(y+1)+2(y+1)

=xy+x+y^2+y+2y+2

=xy+x+y^2+3y+2

=y^2+xy+x+3y+2

(x+y+2)(y+1)=y^2+xy+x+3y+2

Hence option D is the correct answer.

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