# Bikvadratic equation - problems

- MO Z8-I-1 2018

Fero and David meet daily in the elevator. One morning they found that if they multiply their current age, they get 238. If they did the same after four years, this product would be 378. Determine the sum of the current ages of Fero and David. - Cuboid

Cuboid with edge a=6 cm and body diagonal u=35 cm has volume V=1980 cm^{3}. Calculate the length of the other edges. - Biquadratic

By introducing a new variable solve biquadratic equation: ? - Right triangle eq2

Find the lengths of the sides and the angles in the right triangle. Given area S = 210 and perimeter o = 70. - Diamond diagonals

Calculate the diamonds' diagonals lengths if the diamond area is 156 cm square and the side length is 13 cm.

We apologize, but in this category are not a lot of examples.

Do you have interesting mathematical problem that you can't solve it? Enter it and we can try to solve it.

Do you have interesting mathematical problem that you can't solve it? Enter it and we can try to solve it.

See also more information on Wikipedia.