Answer:
13
Step-by-step explanation:
Answer:
d. 3x - 1.
Step-by-step explanation:
45x^4−5x^2
The GCF is 5x^2 so we have:
5x^2(9x^2 - 1)
The expression in the parentheses is the difference of 2 squares so:
= 5x^2(3x - 1)(3x + 1)
Answer:
90
Step-by-step explanation:
9^2 = 81 and 3^2 = 9
81 + 9 = 90
Answer:
20
Step-by-step explanation:

So the answer is 20