Answer:
X = -1/2 or 1/2
Step-by-step explanation:
When the square root of a number is found, this usually results in 2 solutions which may be equal in size but opposite in signs.
As such,
X^2=1 to find x find the root of both sides
X = √1
X = -1 or 1
Going by this
4x^2=1
Divide both sides by 4
X^2=1 /4
taking the square root of both sides
X = √1/4
The root of 1 is -1 or 1 while that of 4 is -2 or 2 hence,
X = -1/2 or 1/2
Answer:
2(x^4+2x^3+18)
Step-by-step explanation:
1.)2x^4+4x^3+6^2
2.)2x^4+4x^3+36
3.)2(x^4+2x^3+18)
I hope this helps you
-[x+y=5]
-x-y=-5
x+4y=14
-x-y+x+4y=-5+14
3y=9 y=3 x=2
Answer: 8.4 km squared
Step-by-step explanation:
3 x 2.8 = 8.4
