SOLUTION: Twice the number is 8 less than its square. What is the number or numbers?
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Question 1017918
:
Twice the number is 8 less than its square. What is the number or numbers?
Answer by
jorel555(1290)
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You can
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Let n be your number. Then:
2n=n^2-8
n^2-2n-8=0
(n-4)(n+2)=0
n=4,-2!!!!!!!!