Your answer should be an expanded polynomial in standard form.
(
−
5
n
4
+
8
)
+
(
5
n
4
+
8
n
3
+
3
n
2
)
=
(−5n
4
+8)+(5n
4
+8n
3
+3n
2
)=left parenthesis, minus, 5, n, start superscript, 4, end superscript, plus, 8, right parenthesis, plus, left parenthesis, 5, n, start superscript, 4, end superscript, plus, 8, n, cubed, plus, 3, n, squared, right parenthesis, equals

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

d is the only accurate one

step-by-step explanation:

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.