Asked by Victoria
Find the roots of each quadratic polynomial.
1. 16x + 40 + 2x^2
Solve. Round to the nearest hundredth.
2. 12 = 5x^2
1. 16x + 40 + 2x^2
Solve. Round to the nearest hundredth.
2. 12 = 5x^2
Answers
Answered by
Victoria
1. A: No real solution.
2. A: ?
2. A: ?
Answered by
Leo
For number 2, can you show your work? What do you have so far?
Answered by
Victoria
2. 12 = 5x^2
12 / 5 = 5x / 5
12/5 = x^2
±√12/5 = x
12 / 5 = 5x / 5
12/5 = x^2
±√12/5 = x
Answered by
Leo
That looks right to me. Are you allowed to use a calculator? What do you get for the value of x?
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