Question

Divide (x3 + 3x2 + 16x + 48) by (x + 3)

A) x - 16
B) x + 16
C) x2 - 16
D) x2 + 16

Divide (x2 + x - 6) by (x + 3).
A) x - 2
B) x + 3
C) x - 3
D) x + 2
please explaine how you got it thank you so much.

Answer 1

D) x² + 16

A) x − 2

Explanation:

(x³ + 3x² + 16x + 48) / (x + 3)

Use grouping:

(x² (x + 3) + 16 (x + 3)) / (x + 3)

Divide:

x² + 16

(x² + x − 6) / (x + 3)

Factor:

(x + 3) (x − 2) / (x + 3)

Divide:

x − 2