Answer:12
Step-by-step explanation:
Your goal with variables should always be to isolate them.
so the first step is to subtract the 4
3x^2+4=436
-4= -4
3x^2=432
The next step to isolate the variable x is to get rid of the 3. To get rid of the 3 you have to divide both sides by 3 since it is the opposite of multiplying.
3x^2=432
/3. =/3
x^2=144
the last step to isolate the x is to do the opposite of what an exponent is, which is to find the square root. So when you square the x^2, the exponent cancels out.
square root of x^2=x
square root of 144=12
x=12
hope this helps!
Answer:
x=64
Step-by-step explanation:
you have to divide both sides by two to isolate the variable.
Answer:
a) 11,10,9,8...1
b) 3,1,-1,-3...-15
Step-by-step explanation:
x=4
4x-(12<span>÷3)+2x=20
4x-(4)+2x=20
4x4-4+2x4=20
16-4+8=20
12+8=20</span>
Answer: The pics wont lode
Step-by-step explanation: