Solve for x. 3x ^2 -4 = 8
2 answers:
Answer:
x = ±2
Step-by-step explanation:
3x ^2 -4 = 8
Add 4 to each side
3x ^2 -4+4 = 8+4
3x^2 =12
Divide each side by 3
3x^2 =12
3x^2/3 = 12/3
x^2 = 4
Take the square root of each side
sqrt(x^2) = ±sqrt(4)
x = ±2
Answer:
x = 2
Step-by-step explanation:
3x ^2 -4 = 8
+4
3x^2 = 12
3x^2/3 = 12/3
x^2 = 4
Square root 4 is 2
x = 2
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I hope it helps you get it right
12 = 15 (z - 1/5)
12 = 15z - 3
+3 +3
15 = 15z
15 (÷ 15) = 15z (÷ 15)
1 = z
Hope I helped!!! :)
Answer:
1+1=2
Step-by-step explanation:
Thats easy
The answer would be Jenna's answer. If you distribute the teachers original expression you get 15x + 20y + 5. If you distribute Jenna's answer you get just that.
Answer: Alice
Step-by-step explanation: Alice won because she started furthest From the starting line.
