If a bracelet cost 23.99 and it's 75% off how much would it cost
2 answers:
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Questions:
(a) What is a simplified expression for (x + y) – (x – y)?
(b) Carlotta thinks that is the same as
. Which statement shows that it is NOT the same?
Answer:
Step-by-step explanation:
Solving (a):
Given
Required
Simplify
Open brackets
Collect Like Terms
Solving (b):
Given
and
Required
Which expression shows they are not the same
The expression that shows this is:
Take for instance; y=2
Substitute 2 for y in
Evaluate all exponents
The above expression supports