Factorize: -x⁴y⁴-256z⁴ pls solve this I will make you brainlist . step by step pls

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?