Why cant 81-x to the forth power be factored unti (3+x) squared times (3-x) squared

There are a total of 52 students on ther soccer team and the field hockey team. the field hockey team has 12 more student than the soccer team. Wrire a system of linear equations that fits this situation.

Simplify (x^2+6) - (6-x^2)

You are to prepare amoxicillin (amoxil) 0.75g by mouth from an amoxicillin 250mg/5ml suspension. You should prepare how many ml? Show the steps to how you got this answer?

A line segment 42 inches long is divided into 3 portions in a ratio of 1:2:4. How many inches longer is the longest portion than the shortest portion? f. 16 g. 18 h. 20 j. 22 k. none of these

The Yoon family's monthly budget allowed them to spend $175 for personal expenses. To prepare for an upcoming camping trip in June, their personal spending totaled $455. By how much did they exceed their budget that month?

The perimeter of the rectangular playing field is 592 yards. the length of the field is 4 yards less than quadruple the width. what are the dimensions of the playing field?

How much will you save if you buy an item listed at $575,50 at a 30 percent discount? A. $172.65 B. $176.25 C. $185.63

How to simplify 3t (t-5) + 6t 2

Simplify each expression. Use the distributive property to remove any parentheses. - 7 (y+5)

What is the volume of this rectangular prism? 10/3 cm 4/5 cm 1/5 cm