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The problems you missed are listed below with answers and explanations.  Look over the explanation for each problem so you can understand why you missed it!

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'); resetdisplay(); for(var i = 0; i <5; i++) { ganswer[i] = prompt(question[i],""); if (ganswer[i] == "quit" || ganswer[i] == "QUIT" || ganswer[i] == "Quit") { break; } q++; if (ganswer[i] == answer[i]) { c++; } else { rightans[i] = 0; w++; } resetdisplay(); } for(var i = 0; i < 10; i++) { if (rightans[i] == 0) { expl = expl + explain[i]; } } parent.frames[0].document.write(expl); parent.frames[0].document.write("

A quadratic equation is an equation that has x^2 power in it. So the highest power of a quadratic equation is 2

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The standard form of a quadratic equation is ax^2 + bx +c. Which gives us 3 terms to work with.

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The quadratic formula uses the standard form of quadratic equations, defined as ax^2 + bx +c. The values of a, b and c are used to solve the equation.

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An equation with a power of 4 can often be FOILed and you can then solve each binomial and get your answers for the equation. So it is possible to use quadratic methods on an equation with a power of 4.

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After solving a quadratic equation, you almost always have 2 answers.

'; rightans[0] = 1; rightans[1] = 1; rightans[2] = 1; rightans[3] = 1; rightans[4] = 1; //-->