This is completing the square.
When in the form where are constants; you can complete the square by .
This question just involves algebra. Apply the rules provided and simplify.
This question used the rules of indices.
any help on any of these is appreciated. i took precalc so long ago, i'm finding it really difficult to recall how to do certain things, and i didnt want to clutter the board with all these different questions.
Put the quadratic function in standard form (i.e. .
Correct Answer:
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Given that , find the ratio .
Correct Answer:
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Use the properties of exponents to simplify the expression
Correct Answer:
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This is completing the square.
When in the form where are constants; you can complete the square by .
This question just involves algebra. Apply the rules provided and simplify.
This question used the rules of indices.
Edit: Air, check your first step in completing the square. Should've added 1 instead of subtract. Just a typo, since the answer checked. I'm still too slow today,
Just complete the square.
Take half the coefficient of your linear term, square it and add it to make a perfect square trinomial, then subtract it to equalize the equation.
You are given that which is a given function and works for all value of . If you are asked to work out the value of the function when (for example) when you would insert into the places hence:
Similarly, when you are asked to work out , this means you are working out the value when hence inserting into places.