Step-by-step explanation:
x²-xy-xy+y²
x²+2xy+y²
hope it helps
The average cost of a semester is 1200 in state tuition including books and meal plans for a yearly cost and the two year fee it would be around 4000
Answer:
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Answer:
Step-by-step explanation:
To prove: The sum of a rational number and an irrational number is an irrational number.
Proof: Assume that a + b = x and that x is rational.
Then b = x – a = x + (–a).
Now, x + (–a) is rational because addition of two rational numbers is rational (Additivity property).
However, it was stated that b is an irrational number. This is a contradiction.
Therefore, the assumption that x is rational in the equation a + b = x must be incorrect, and x should be an irrational number.
Hence, the sum of a rational number and an irrational number is irrational.
