document.write( "Question 197024: thank you in advance for any help with these:\r
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document.write( "1. 15x^4 - 11x^2 + 2 = 0 use radical as needed\r
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document.write( "2. x^2 + 6x - 4 = 0 simply, use radical if needed\r
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document.write( "3. 4x(x - 1)- 5x(x)= 3 solve for x\r
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document.write( "4. 8x^2 - 6x - 2 = 0 state value of discriminant; one or two real soulution? or two imaginary solution?
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document.write( "thank you for any help you can provide... \n" );
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Algebra.Com's Answer #147692 by stanbon(75887) ![]() You can put this solution on YOUR website! 1. 15x^4 - 11x^2 + 2 = 0 use radical as needed \n" ); document.write( "15x^4 -6x^2-5x^2+2 = 0 \n" ); document.write( "3x^2(5x^2-2) - (5x^2-2) = 0 \n" ); document.write( "(5x^2-2)(3x^2-1) = 0 \n" ); document.write( "--- \n" ); document.write( "5x^2-2 = 0 or 3x^2-1 = 0 \n" ); document.write( "x^2 = 2/5 or x^2 = 1/3 \n" ); document.write( "x = +/-sqrt(2/5) or x = +/-sqrt(1/3) \n" ); document.write( "================================================= \n" ); document.write( "2. x^2 + 6x - 4 = 0 simply, use radical if needed \n" ); document.write( "x = [-6 +-sqrt(36-4*1*-4)]/2 \n" ); document.write( "x = [-6 +-sqrt(52)]/2 \n" ); document.write( "x = [-3 +- sqrt(13)] \n" ); document.write( "================================================= \n" ); document.write( "3. 4x(x - 1)- 5x(x)= 3 solve for x \n" ); document.write( "4x^2-4 -5x^2 - 3 = 0 \n" ); document.write( "-x^2 - 7 = 0 \n" ); document.write( "x^2 = -7 \n" ); document.write( "x = +/-isqrt(7) \n" ); document.write( "================================================== \n" ); document.write( " \n" ); document.write( "4. 8x^2 - 6x - 2 = 0 state value o \n" ); document.write( "4x^2 - 3x - 1 = 0 \n" ); document.write( "4x^2 - 4x + x -1 = 0 \n" ); document.write( "4x(x-1) + (x-1) = 0 \n" ); document.write( "(x-1)(4x+1) = 0 \n" ); document.write( "x = 1 or x = -1/4 \n" ); document.write( "==================================================\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "f discriminant; one or two real soulution? or two imaginary solution? \n" ); document.write( "If discriminant = 0 ; two equal Real solutions \n" ); document.write( "If discriminant > 0 ; two unequal Real solutions \n" ); document.write( "If discriminant < 0 ; two unequal complex solutions \n" ); document.write( "========================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |