Question 17
Quadratic EquationsSolve the equation 3x2 + 25x − 18 = 0
- A.−3,2
- B.−2,3
- C.−2,9
- D.−9,2/3
- E.−2/3, 9.
Show the answer and explanation
Answer: D (−9,2/3)
Explanation
3x² + 25x − 18 = (3x − 2)(x + 9) = 0, so x = 2/3 or x = −9.
Solve the equation 3x2 + 25x − 18 = 0
Answer: D (−9,2/3)
3x² + 25x − 18 = (3x − 2)(x + 9) = 0, so x = 2/3 or x = −9.