Answered

4. The length of a rectangle is (x+8) cm and its width is (x + 1) cm. Which of the following
quadratic functions represents the area of the rectangle?
A.f(x)=x²+9x+8
B.f(x)=x²+8x+8
C.f(x)=x²+9x+9
D.f(x)=x²+8x+9​

Sagot :

Amieroseaguiflorviz

Answer:

A.

Step-by-step explanation:

(x+8)(x+1)

x(x)+8(x)+x(1)+8(1)

x²+8x+1x+8

x²+9x+8