Multiplying Binomials-Mr. Darling's Class.
Multiplying Binomials (two term expressions)
Use the sliders to change the values for your constants, and examine how the problem looks when mapped onto a matrix.
Multiplying Binomials
DIRECTIONS!!!!
Play with the applet. You can use the sliders to make any problem you want (X will not change, but the second term can go from +20 to -20). Click on each box to see the order of steps for Multiplying Binomials using the Lattice (or Matrix or Area Model or Box Model) method. Remember to answer the questions below, but more importantly, make sure you understand and feel good about it.
Practice #1
What is (X+3)(X-2)? Enter your answer WITHOUT CHECKING THE SOLUTION!
Practice #1 Reflection
After you selected "Show Solution" were you correct? If not, what mistake(s) did you make?
Practice #2
What is (X-7)(X-12)? Enter your answer WITHOUT CHECKING THE SOLUTION!
Practice #2 Reflection
After you selected "Show Solution" were you correct? If not, what mistake(s) did you make?
Practice #3
What is (X-20)(X+20)? Enter your answer WITHOUT CHECKING THE SOLUTION!
Practice #3 Reflection
After you selected "Show Solution" were you correct? If not, what mistake(s) did you make?
What if....?
What would change if Practice #1 were (2X+3)(X-2) instead? Explain below.