From where the word quadratic come

A quadratic equation is chosen from the set of all quadratic equations which are unchanged by squaring the roots. The chance that the chosen equation has equal root, is

If alpha, beta are the roots of the quadratic equation ax^(2) + bx + c = 0 then form the quadratic equation whose roots are palpha, pbeta where p is a real number.

A particle moves according to the equation t= sqrtx +3 , where will be the particle come to the rest for the first time

From where the agarose extracted ?

If the zeroes of the quadratic ax^(2)+bx+c where c ne 0 , are equal then:

From where does ozone come in the photochemical smog ?

From a quadratic polynomial, the sum and product of whose zeros are (-3) and 2 respectivily.

Hydrogen for the synthesis of organic compounds in photosynthesis comes from

From where is progesterone produced ?