Algebra Problems Solved
How to solve Algebra Problems like this?
(3x ^ 2 +15) ^ 2 = 100 + 3x power to remove the parentheses, I have the square root of both sides, right? However, I can not square root of each individual term. I square root of the whole side law. What brings me back to my original problem, however. A square I do not know how to remove. Could each term in square brackets, such as when the distributive property is used?
You can try to broaden his left side, collecting all terms on one side of the equation, then try factor (3x ^ 2 +15) ^ 2 = 100 + 3x (3x ^ 2 +15) (3x ^ 2 +15) = 100 3x + 9x ^ 4 + 90x ^ 2 + 225 = 100 3x + 9x ^ 4 + 90x ^ 2 – 3x + 125 = 0 However, I do not see how this factor. So instead, you can use a graphical approach: graph both y = (3x ^ 2 +15) ^ 2 and 3x = 100 + When Cross is / are the solution (s). Hope this helps!
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