Question

(Multiplying Linear Expressions MC)

Multiply 5c(9 − 4c).
A: 45c − 4c
B: 45c − 20c2
C: 45c − 20c
D: 45 − 20c2

Answer 1

45c-20c²

Explanation:

You just multiply the number outside the bracets with the numbers inside.

5c×9= 45c

5c×-4c= -20c²

So the answer is 45c-20c²

Which is option 'B'