Pls help its due tonight <3
and explain by step pls

Step-by-step explanation:

the subtraction symbol means that you will be finding the difference

6x^4-10x^4

the exponents will stay as they are because they are the same

you just have to combine the like terms 6x^4 and 10x^4

a term is separated by a symbol (in this case it is a subtraction symbol)

6x-10x=-4x

so you will just put the exponent back in place and your answer will be

-4x^4

((I tried explaining to the bast of my abilities :))

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

the answer is 99.