23.
1 answer:
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Hi there!
Remember the following
Now we can easily work out the parenthesis using FOIL method.
First 2m × 2m = 4m^2
Outside 2m × -9 = -18m
Inside 2m × -9 = -18m
Last -9 × -9 = 81
Finally some simplifying
The third answer is correct.
~ Hope this helps you!
Remember the following
Now we can easily work out the parenthesis using FOIL method.
First 2m × 2m = 4m^2
Outside 2m × -9 = -18m
Inside 2m × -9 = -18m
Last -9 × -9 = 81
Finally some simplifying
The third answer is correct.
~ Hope this helps you!