I think you meant 'x + 4x = -2'
Combine like terms:
5x = -2
Divide 5 to both sides:
x = -2/5 or -0.4
Answer:
6.9261307e+23
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
.1 Simplify: 5n(2n3+n2+8)+n(4-n).
Solution:
5n(2n3+n2+8)+n(4-n).
= 5n × 2n3 + 5n × n2 + 5n × 8 + n × 4 - n × n.
= 10n4 + 5n3 + 40n + 4n – n2.
= 10n4 + 5n3 + 44n – n2.
= 10n4 + 5n3 – n2 + 44n.
Answer: 10n4 + 5n3 – n2 + 44n
