For my homework i dont understand this: the sale price on an item is $160 after a 20% discount.what is the origonal price of the
1 answer:
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Answer:
-3 times the square root of 5
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Explanation:
Let
Replace all the root 5 terms with x and we go from
to
From here, combine like terms to get
and the last thing to do is replace the x with sqrt(5)
Meaning that,
Answer:
Final factor is (x-9)(x+4)
Step-by-step explanation:
Given expression is .
Now we need to factor that expression
Find two numbers whose product is -36 and sum is -5.
Two such numbers oare -9 and +4. So we get:
Hence final factor is (x-9)(x+4)
