Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Quadratic Equation
Which of the following is a quadratic equation ?
1
\(\rm -2x^2=(5-x)\left(2x-\frac{2}{5}\right)\)
2
x3 - x2 = (x - 1)3
3
\(\rm (k+1)x^2+\frac{3}{2}x=7, k=-1\)
4
More than one of the above
5
None of the above