This week we learned how to multiply and divide radicals. For an example in multiplying you would be given something like 2 (3
– 8
+
). In this example the first thing that you would do is simplify the radicals so you would then have 2
(9
– 8
+ 2
), next you would do everything in the brackets and you would then get 2
(3
), once you have done everything in the brackets you then multiply, and you should get 6
, you would then get 6 x 5 because the square root of 25 is 5. Your final answer should be 30.
The image bellow is a picture of the question I just went over:
When dividing radicals, they are similar to fractions but you cannot leave a radical in the denominator. For example you would have +
–
divided by
. The first thing that you would do is simply divide so you would then have
+
–
. Then you would simplify and get 2 + 2
– 3
. After subtracting your final answer should be 2 –
.
The picture bellow is of the dividing question I just went over:
Leave a Reply