document.write( "Question 1036813: I'm having issues with these types of problems sinking in. -5x+3=x^2+2x, -5x+3-x^2+2x=0 then we're left with -2x+3-x^2 we rearrange that to look like -x^2-2x+3 then...x^2+2x-3 (x+3)(x-1) I feel like I'm doing it wrong. Here's the problem.....\r
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document.write( "Find the values of x for which f(x) = g(x)
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document.write( "a. f(x) = -5x + 3, g(x) = x^2 + 2x\r
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Algebra.Com's Answer #651522 by addingup(3677)![]() ![]() You can put this solution on YOUR website! f(x) = -5x+3, g(x) = x^2+2x Move all the terms to the left side: \n" ); document.write( "x^2+2x-5x+3 = 0 Combine like terms: \n" ); document.write( "x^2-3x+3 = 0 \n" ); document.write( "Now we have a quadratic equation in the form ax^2+bx+c, so i'll solve it by using the quadratic formula: \n" ); document.write( "x = -(-3÷2)+-√(-3÷2)2-3 \n" ); document.write( "Run the calculations and you get: \n" ); document.write( "x = 1.5±0.866025403784i This calculation has no real solution. Usually you don't have to go beyond this point. \n" ); document.write( " \n" ); document.write( " |