Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Algebra Quadratic Equation
Which of the following is a quadratic equation?
1
x(x + 1) + 8 = (x + 2) (x - 2)
2
m2 + \(\frac{1}{{{m^2}}}\) - 2 = 0
3
3x2 - 4x + 2 = 2x2 - 2x + 4
4
p3 - p2 - 9 = 0