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solve 2x^2=5x+3 what type of function is it and what are its zeros?
4 Answers
- PuzzlingLv 75 years ago
If you get everything on one side you have:
2x² - 5x + 3 = 0
That's a second degree polynomial also called a "quadratic".
To solve, you can just factor that as:
(2x + 1)(x - 3) = 0
That leads to two zeros:
2x + 1 = 0
2x = -1
x = -1/2
or
x - 3 = 0
x = 3
Answer:
x = -1/2 or x = 3
- DWReadLv 75 years ago
2x² = 5x+3
2x² - 5x - 3 = 0
Use quadratic formula to find the zeros.
x = [5 ± √(5² – 4·2(-3))] / [2·2]
= [5 ± √49] / 4
= [5 ± 7] /4
= -0.5, 3
- Anonymous5 years ago
If you move everything to the left hand side it is a quadratic
2x^2- 5 - 3 = 0
and the solutions are
3 and - 1/2