Answer:
<h2>c. x = -4 or x = 9</h2>
Step-by-step explanation:
Domain:
solution:
use <em>(a - b)(a + b) = a² - b²</em>
multiply both sides by (x - 3) ≠ 0
cancel (x - 3)
subtract 
from both sides
cross multiply
use FOIL
subtract 4x from both sides
combine like terms
change the signs
The product is 0 if one of the factors is 0. Therefore:
<em>add 9 to both sides</em>
<em>subtract 4 from both sides</em>
<u>b = 1/6 r w</u>
Multiply each side by 6 : 6b = r w
Divide each side by 'w' : <em>6b / w = r
</em>
Answer:
1: 155
2: 222
3: 44
4: 132
5: 163
6: i dont know
7: 202
8:?
9: ?
hope this helped!
Step-by-step explanation:
Answer:
10. 7
11. 4
12. 8
13. 7
14. 2
15. 3
16. 11
17. 9
18. 8
Step-by-step explanation:
Answer:
-5
Step-by-step explanation:
2x+3=-7
2x=-7-3
2x=-10
x=-10/2
x=-5
