Question

Jeremiah is factoring 0.64t^24 - 9 by using the rule, a^2 - b^2 = (a+B)(a-b).

What will he use for the value of a?
A.0.08t^12
B. 0.8t^12
C. 0.64
D. 0.8
I think it's B or C... Help please!

Answer 1

So basically 0.64t^24 – 9=a^2-b^2=(a+b)(a-b)

Which number squared gives 0.64t^24
Compare and get your answer.

Answer 2

Wait so it is b?

Answer 3

its C

Answer 4

Ohh! Okay! Thanks for the help

Answer 5

I got it wrong. The correct answer was B.