To get the difference we proceed as follows:
<span>3n^2(n^2+4n-5) - (2n^2-n^4+3)
open the parenthesis
3n</span>²×n²+3n²×4n-3n²×5-2n²+n⁴-3
this will give us:
3n⁴+12n³-15n²-2n²+n⁴-3
putting like terms together
3n⁴+n⁴+12n³-15n²-2n²-3
simplifying further we obtain
4n⁴+12n³-17n²-3
b] The highest degree of the the result will be obtained by considering the term with the highest power. The highest power is 4, thus the result will be classified as polynomial of degree 4.
Answer:
pretty sure its A
Step-by-step explanation:
Answer:
X=11
Step-by-step explanation:
2x+22=4(x+3)
2x-(22)=0
2x=22
x=22/2
x=11
Answer:
<u>80</u>.
Step-by-step explanation:
To find the mean of an amount of numbers, you first add up all of the numbers, in this case, 90 + 80 + 70 = 240. Then, you simply divide the sum of all the numbers by the amount of numbers there are. In this case, there are three. (90, 80, and 70). So to find your answer, the equation would be:
(90 + 80 + 70) ÷ 3 = 80.