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Simplifying 13x2 = 4x + -17 Reorder the terms: 13x2 = -17 + 4x Solving 13x2 = -17 + 4x Solving for variable 'x'. Reorder the terms: 17 + -4x + 13x2 = -17 + 4x + 17 + -4x Reorder the terms: 17 + -4x + 13x2 = -17 + 17 + 4x + -4x Combine like terms: -17 + 17 = 0 17 + -4x + 13x2 = 0 + 4x + -4x 17 + -4x + 13x2 = 4x + -4x Combine like terms: 4x + -4x = 0 17 + -4x + 13x2 = 0 Begin completing the square. Divide all terms by 13 the coefficient of the squared term: Divide each side by '13'. 1.307692308 + -0.3076923077x + x2 = 0 Move the constant term to the right: Add '-1.307692308' to each side of the equation. 1.307692308 + -0.3076923077x + -1.307692308 + x2 = 0 + -1.307692308 Reorder the terms: 1.307692308 + -1.307692308 + -0.3076923077x + x2 = 0 + -1.307692308 Combine like terms: 1.307692308 + -1.307692308 = 0.000000000 0.000000000 + -0.3076923077x + x2 = 0 + -1.307692308 -0.3076923077x + x2 = 0 + -1.307692308 Combine like terms: 0 + -1.307692308 = -1.307692308 -0.3076923077x + x2 = -1.307692308 The x term is -0.3076923077x. Take half its coefficient (-0.1538461539). Square it (0.02366863907) and add it to both sides. Add '0.02366863907' to each side of the equation. -0.3076923077x + 0.02366863907 + x2 = -1.307692308 + 0.02366863907 Reorder the terms: 0.02366863907 + -0.3076923077x + x2 = -1.307692308 + 0.02366863907 Combine like terms: -1.307692308 + 0.02366863907 = -1.28402366893 0.02366863907 + -0.3076923077x + x2 = -1.28402366893 Factor a perfect square on the left side: (x + -0.1538461539)(x + -0.1538461539) = -1.28402366893 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 7y+7=28 | | 3x+2y-1=8 | | 68-4=7x+24 | | -2y+6x=10 | | 7-4x=-5 | | 6x^2-3x-7=0 | | 12.5=x^2 | | 3t^2+5t-9=0 | | x^3-37x+6=0 | | 23t+5(1-5t)= | | 3t(3t)+5t-9=0 | | 2.5=8x | | -5(a+6)= | | 4069.44=3.14r^2 | | ab+4a+2b+8=0 | | 6(x)-(-10)=38 | | 6644.24=3.14r^2 | | 5c=10 | | 58+26= | | x+2+4+5+6+7+x+x+67=5 | | 25.12=2r*3.14 | | 28.26=3.14r^2 | | 4298.66=3.14r^2 | | 4298.66=2r*3.14 | | 4928.66=2r*3.14 | | 8+3x=33+x | | 4928.66=3.14r^2 | | 113.04=3.14r^2 | | 5x+23=8 | | 113.04=2r*3.14 | | 200=3x+5+15 | | 615.44=3.14r^2 |