So first subtract 20 from both sides of the equation.
3x-4=35
now add 4 to both sides.
3x=39
now divide both sides by
x=13
It is called a difference of squares because there are two things squared being subtracted. You can recognize it when there are two terms, subtraction between the two of them, and you know the square root of both
There are 30.48 centimeters in 12 inches.
Step-by-step explanation:
Given,
1 inch = 2.54 centimeters
For x inches;
x inches = 2.54*x centimeters
x inches = 2.54x centimeters
Number of centimeters in 12 inches
We will put x=12
12 inches = 2.54(12) centimeters
12 inches = 30.48 centimeters
There are 30.48 centimeters in 12 inches.
Keywords: multiplication
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Answer: x = ± i , x = ±√2i are solution .
Step-by-step explanation:
Given : 
, use u substitution to solve.
To find : what are the solutions of the equation .
Solution : We have given that .
Let consider 
= u .
Substitute u = in given equation .
.
On factoring
.
Taking common
u( u+2) +1 (u+2) = 0.
On grouping
(u+1) (u+2) =0
Now, u+1 = 0 ⇒ u = -1.
u+2 = 0 ⇒ u = -2.
In term of x, plugging = u.
= -1 ; = -2.
taking square root both side
x = ± i
x = ±√2i.
Therefore, x = ± i , x = ±√2i are solution .
1/2 y=mx+b y=1/2x+2 this is the slope of the graph. the slope intercept form is y=mx+b
