Answer:
x = -2 5/14
Step-by-step explanation:
7(x + 6) + 7x = 9
First, open the parenthesis.
7x + 42 + 7x = 9
Combine like terms.
7x + 7x + 42 = 9
14x + 42 = 9
Subtract 9.
14x = -33
Divide.
x = -33/14
Simplify.
x = -2 5/14
Hope this helps!
Answer:
-6-2x
Step-by-step explanation:
Expand:
(x+3)2 = 2x+6
-4(x+3) = -4x-12
2x+6-4x-12 = -6-2x
The six sides would be:
2 sides of 14*4=56cm^2, 112 in total
2 sides of 4*6=24cm^2, 48 in total
2sides of 14*6=84cm^2, 168 in total
112+48+168=328cm^2
Answer:
cdscdscds
Step-by-step explanation:
cscdscaqdceq 1vrfwe3w4xfer2fqc2q
AB = X^2(3X +2)
C^2 = (x - 3)^2
AB - C^2 = 3x^3 + 2x^2 - (x^2 - 6x + 9)
= 3x^3 + x^2 + 6x - 9