X=12
First you would combine like terms 7+3=10
Then you would have 10 +5x =70
Subtract 10 from both sides 10-10 & 70-10
That will leave you with 5x=60
Divide 5 from both sides 5x/5 & 60/5
Answer will be x = 12
Answer:
- 25x³
Step-by-step explanation:
Given
(x + 5)(x - 5)x³ ← expand the factors using FOIL
= (x² - 25)x³ ← distribute
=
- 25x³
Answer:
2
Step-by-step explanation:
Answer:
Given, a
n
=(5n+2).
First four terms can be obtained by putting n=1,2,3,4
a
1
=(5×1+2)=7
a
2
=(5×2+2)=12
a
3
=(5×3+2)=17
a
4
=(5×4+2)=22
First 4 terms in the sequence are 7,12,17,22.
Step-by-step explanation: