Question

1.find the quadratic equation whose root are k and 1/k 2.find k,if the quadratic equation 2x[sq] + kx+3=0 has equal roots. 3.use quadratic formula and find roots of 2x[sq] +x-4=0 4.find the root of ax[sq]+a=a2[sq]+x 5.solve for x:(root over2x+root over3)2=3x[sq]-5x plz say answer correctly

Answer 1

Answer:

1. (x-k)(x-1/k)=0

2. k²-4×2×3=0

or, k²=24

or, k=±√24

3. 2x²+x-4=0

or, x={-1±√(1-32)/4}

4. ax²+a=2a²+x

or, ax²-x+a-2a²=0

or, x={1±√(1-4a(a-2a²))/2a}

or, x={1±√(1-4a²+8a³)/2a}