SOLUTION: The sum of number and twice its square is 35. Find the number.
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Question 1083315: The sum of number and twice its square is 35. Find the number.
Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
This is the description:
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Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
let's a number be
twice its square is
i the sum of number and twice its square is , we have
......use quadratic formula
solutions:
or
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