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Solve 3x^2+4=436
Please solve step by step

User EugeneS
by
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1 Answer

6 votes

Answer:12

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!

User Wanderson Santos
by
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