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k in (-oo:+oo)
((6*k)/2)^2 = 0
9*k^2 = 0 // : 9
k^2 = 0
k = 0
k = 0
| 42-2=28.4 | | -3a/4b×4ab/7b÷4ab/5b | | 9+7y=37 | | 18=9c-9 | | 8cos^2x-2cosx=0 | | (2-y)(2y-9)=0 | | x-7.9=5.6 | | (4y+8x+6)+25+(4x+6y+7)= | | 0=-16x^2+20x+15 | | 1.5-2x=4x-5x+6 | | (2w-7)(2+w)=0 | | 8-2(y+5)=3y | | -3x^2+12x-16=0 | | x-3/14=5/14 | | (a+5)(a-1)= | | 2+8y=6y | | 3x+9=6x+18 | | (3j-5)(4j-3)= | | x-0.15*x=210 | | 4b+-7=1+56b | | (4h+4)(2h+5)= | | 3p+2=10+2p | | (5g+3)(g-3)= | | -7+4b=1+56b | | ln(y-8)-ln(8)=x+ln(x) | | (-2.1x+3.7)= | | (4e-5)(3e+3)= | | (2d+4)(3d-2)= | | (c+3)(c+7)= | | 6/200 | | 3/16x100 | | 18.1a-8.1b= |