SOLUTION: Expanding a simplifying an algebraic equation. 3(2t-7)^2 I am unsure of whether to expand or do the indices first.

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Expanding a simplifying an algebraic equation. 3(2t-7)^2 I am unsure of whether to expand or do the indices first.       Log On


   

Question 944465: Expanding a simplifying an algebraic equation.
3(2t-7)^2
I am unsure of whether to expand or do the indices first.
Answer by etutorworld(19) About Me  (Show Source):
You can put this solution on YOUR website!
Expansion of 3(2t-7)^2 can be done as below
We will first expand the quantity within the parenthesis
Use the formula (a- b)^2 = a^2 - 2ab + b^2
3( 4t^2 - 28t + 49)
Finally applying Distributive property we get
12t^2 - 84t + 147 [Answer]