Question 103816
2x^2 - 35 = 15 
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I don't  know what you instructions are, but here is one way to solve it:
Add 35 to both sides:
2x^2 = 15 + 35
2x^2 = 50
:
Divide both sides by 2:
{{{(2/2)x^2}}} = {{{50/2}}}
x^2 = 25
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Find the square root of both sides:
{{{sqrt(x^2)}}} = +/-{{{sqrt(25)}}}
x = +5
x = -5
:
Confirm your solutions by substituting both solutions in the original equation