SOLUTION: I am trying to ensure I am telling my son properly on polynomials. (Been a few since I had Algebra 2) -7t (3t+20)^2 Original question -7t (3t+20)(3t+20)Step 1 Now I can't reme

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am trying to ensure I am telling my son properly on polynomials. (Been a few since I had Algebra 2) -7t (3t+20)^2 Original question -7t (3t+20)(3t+20)Step 1 Now I can't reme      Log On


   

Question 711371: I am trying to ensure I am telling my son properly on polynomials. (Been a few since I had Algebra 2)
-7t (3t+20)^2 Original question
-7t (3t+20)(3t+20)Step 1
Now I can't remember!!
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
You are stuck at multiplying the two binomials.

Arrange the terms on a grid and fill in each row and column element.

-------------3t--------------------20
.
.
.
.3t----------9t%5E2-----------------60t----
.
.
.
.
.20---------60t-------------------400---
.
.


Next, just sum the resulting partial products.
9t%5E2%2B60t%2B60t%2B400
9t%5E2%2B120t%2B400

Next you deal with the still unfinished multiplication by -7t.