Question

a = -3 Whats the value of:
A. a^2
B. 3a^2

Answer 1

Answer:

a.-3²=-9

b.3*-3²

=-9²

81

Step-by-step explanation:

Answer 2

When you completely factor the polynomial you will get: (3a-5)(a-4)

If you are using the grouping method, the factorization will look like:

 

3a^2-17a+20

3a^2-12a-5a+20

(3a^2-12a)+(-5a+20)

3a(a-4)-5(a-4) <--factor out 3a and -5 respectively, (a-4) is now a common term

(3a-5)(a-4)