K2+5k-6=0how do i solve it in quadratic form?

The formula for solving a quadratic equation is -b+ or minus the square root of b - 4ac divided by 2a. You can search up the formula is this doesn't sound clear to you but this is one you should memorize. You can just plug in all the numbers but the answer is k = 1, -6

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.