Question

1. Multiply. x X x³.

2. Multiply. T9 x t4 x t8
T21
T13
T12
T44

3. Use estimation to determine whether the result is reasonable or not. 351.23 + 3.71 Results: 354.833
Reasonable or Not reasonable

4. Simplify the expression by combining like terms. -8x - 4x
-4x
32x
-12 + x
-12x

Answer 1

1) I'm guessing your question is x * x^3
the answer for that would be x^4

2) T^21

3) the answer is not reasonable as the sum of those 2 numbers is 354.94

4) -12x