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Simplifying 7x2 + 2 = -6x Reorder the terms: 2 + 7x2 = -6x Solving 2 + 7x2 = -6x Solving for variable 'x'. Reorder the terms: 2 + 6x + 7x2 = -6x + 6x Combine like terms: -6x + 6x = 0 2 + 6x + 7x2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 0.2857142857 + 0.8571428571x + x2 = 0 Move the constant term to the right: Add '-0.2857142857' to each side of the equation. 0.2857142857 + 0.8571428571x + -0.2857142857 + x2 = 0 + -0.2857142857 Reorder the terms: 0.2857142857 + -0.2857142857 + 0.8571428571x + x2 = 0 + -0.2857142857 Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000 0.0000000000 + 0.8571428571x + x2 = 0 + -0.2857142857 0.8571428571x + x2 = 0 + -0.2857142857 Combine like terms: 0 + -0.2857142857 = -0.2857142857 0.8571428571x + x2 = -0.2857142857 The x term is 0.8571428571x. Take half its coefficient (0.4285714286). Square it (0.1836734694) and add it to both sides. Add '0.1836734694' to each side of the equation. 0.8571428571x + 0.1836734694 + x2 = -0.2857142857 + 0.1836734694 Reorder the terms: 0.1836734694 + 0.8571428571x + x2 = -0.2857142857 + 0.1836734694 Combine like terms: -0.2857142857 + 0.1836734694 = -0.1020408163 0.1836734694 + 0.8571428571x + x2 = -0.1020408163 Factor a perfect square on the left side: (x + 0.4285714286)(x + 0.4285714286) = -0.1020408163 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 6=t^(5/6) | | 28v=21 | | 1982.596=2*3.14*67.24+2*3.14*8.2*h | | 10x-3-2x=50 | | x=5+(4166-1)*5 | | -0.00082=ln(1-x) | | 419.3784=2*3.14*67.24+2*3.14*8.2*h | | 0.008=ln(1-x) | | 3x^2=-6x+4 | | h/(25/8)=2 | | 2x^5-512= | | -11(4+g)=121 | | (x-8y)(-3x+y)= | | -0.75x+1=-11 | | -8/5-(-2) | | 419.3784=2*3.14*17.64+2*3.14*4.2*h | | a^3-4+2a^3b-8b= | | 9.21+5.28b=8.35b | | 4x/6=3/7 | | 26(h-992)=208 | | 3gal= | | 26(h-92)=208 | | +3/4(x)+1=-11 | | 4/4a= | | 2x-29=-33 | | (0.25x+115)=90 | | 3(2x-4)-(2x-3)+7=0 | | 2.5(x+4)=4.75 | | X+14+3x-18=180 | | 0.2y+10.5=15 | | 3019+n=30 | | 4.6y+0.19=55.39 |