4x-10=2x subtract 2x from both sides
2x-10=0 add 10 to both sides
2x=10 divide both sides by 2
x=5
Greatest common factor is 1 for the first one and the second one is also 1
Answer:
Step-by-step explanation:
The formula of a volume of a cube with side length a:
We have a = 6cm. Substitute:
Answer:
d. c = 100; (x – 10)²
Step-by-step explanation:
Note that (x+a)²=x²+2ax+a².
In our case, 2a=-20, so 'a' must be -10.
Since c=a², and a=-10, c=(-10²)=100.
Since a=-10, the perfect square is (x – 10)²
<span>3x-5=5x+11
subtract 3x to both sides
</span>3x-5 - 3x =5x+11 - 3x
<span>simplify
-5 = 2x +11
answer is </span><span>D. -5=2x+11</span>
