document.write( "Question 987008: a) Is y = x^2 + 7x + 12 a quadratic equation*? Why or why not?\r
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document.write( "b) Can it be solved by factoring? If yes, solve it. If not, why not?\r
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document.write( "c) As it happens, the equation y = x^2 + 3x - 23 also cannot be solved by factoring. One method of solving quadratic equations, however, that will solve ALL of them, is called using the quadratic formula. Can you state and explain the quadratic formula?\r
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document.write( "d) Use the quadratic formula to solve y = x^2 + 3x - 23 and explain your steps.\r
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document.write( "I really need help with this one!!!!! Thanks \n" );
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Algebra.Com's Answer #607774 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! Can you decompose the polynomial into something of a form (x+r)(x+s) ? If not, then this method of the lesson will always work: \n" ); document.write( "http://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev \n" ); document.write( " |