The expanded form of the expressions are -56w^2 + 25w - 49, 2t^2-9t-1 and x/5 + 3/20
Given the following expressions as shown
7(-8w^2+5w-7)
Expanded the expression to have:
7(-8w^2) + 7(5w) -7(7)
-56w^2 + 25w - 49
For the expression -(-2t^2+9t+1), multiply the expression through bu the minus sign to have 2t^2-9t-1
For the expression 3/5(1/3x+1/algebras)
Expand the expression to have:
3/5(1/3x) + 3/5(1/4)
x/5 + 3/20
Hence the expanded form of the expressions are -56w^2 + 25w - 49, 2t^2-9t-1 and x/5 + 3/20
Learn more on algebraic expressions here: https://brainly.com/question/2164351
