Question

Add. Simplify your answer. 3y^2/y+1 + 3y/y+1

A. 2y
B. 3y^2
C. 3y
D. y+1

Add or subtract. Simplify your answer. c+5/3c+3 − 4/3c+3
A. c/3c+3
B. 3c
C. c+1/3c
D. 1/3

Answer 1

`(3y^2)/(y+1)+(3y)/(y+1)=(3y^2+3y)/(y+1)=(3y(y+1))/(y+1)=3y\to\fbox{B.}\\\\\\(c+5)/(3c+3)-(4)/(3c+3)=(c+5-4)/(3c+3)=(c+1)/(3c+3)=(c+1)/(3(c+1))=(1)/(3)\to\fbox{D.}`