Question

solve the following using quadratic eqns  by using formula

1]     9x2-8=37
2]      x2-5x-50
3]6x2+x-2

Answer 1

1)9x2=45
x2=45/9
x2=5
x=$\sqrt[2]{5}$
2)by using quadratic equations, the answer is (x-10)(x-5)
so,x=-5 or -10
3)factorize 6x2+x-2 you will get (2x-1)(3x+2)