Hannah is at the supermarket to buy carrots and potatoes. If she buys 3 pounds of carrots and 4 pounds of potatoes, it will cost her a total of $10 do

[eddy2017]

I am gonna do it the substitution way and post it just for practice.

 

[JeffM]

Substitution will always work in a system of two quadratic equations. The system can be reduced to a quartic in one unknown, And that is known to be exactly soluble in radicals.

 

[eddy2017]

Substitution will always work in a system of two quadratic equations. The system can be reduced to a quartic in one unknown, And that is known to be exactly soluble in radicals.

Thank you. I am adding that to my notes.