Answer:
Step-by-step explanation:
The expression is
x^2 - 4
This is a quadratic expression.
To find the solution, we will equate the the expression to zero. It becomes
x^2 - 4 = 0
Add 4 to the left hand side of the equation and the right hand side of the equation. It becomes.
x^2 - 4 + 4 = 0 + 4
x^2 = 4
Take square root of the right hand side of the equation and left hand side of the equation. It becomes
√x^2 = √4
x = ± 2
x = 2 or x = - 2
Answer:
I am pretty sure u got it right
Step-by-step explanation:
:)
Answer:
6abx-3bx-4ay+2by
Step-by-step explanation:
Answer:
19200 ft
Step-by-step explanation:
first you convert it based on 1 in = 20 ft
8*20=160
6*20=120
now you multiply to find area
remember area is a = lw
160*120=19200
add units
19200 ft