What is the sum of the solutions of 2x [×-1]-4=-2
2 answers:
Lets get stated :)
2x ( -1 ) - 4 = - 2
- 2x - 4 = - 2
Bring 4 to the right-hand side { You do addition to the opposite }
- 2x = - 2 + 4
- 2x = 2
Take - 2 to the other side in order to isolate x { Do division when you see multiplication }
x = -1
Quick check:
2 ( - 1 ) ( - 1 ) - 4 = - 2
2 - 4 = - 2
- 2 = - 2
So it is the correct value
2x ( -1 ) - 4 = - 2
- 2x - 4 = - 2
Bring 4 to the right-hand side { You do addition to the opposite }
- 2x = - 2 + 4
- 2x = 2
Take - 2 to the other side in order to isolate x { Do division when you see multiplication }
x = -1
Quick check:
2 ( - 1 ) ( - 1 ) - 4 = - 2
2 - 4 = - 2
- 2 = - 2
So it is the correct value
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Answer:
h(x)
Step-by-step explanation:
to solve for an inverse, you swap the x and the y and then solve for y
f(x) = 4x^3-8
y = 4x^3 - 8
x = 4y^3 - 8 swap the x and y
now solve for y:
x + 8 = 4y^3
(x + 8)/4 = y^3
1/4x + 8/4 = y^3
1/4x + 2 = y^3
y =