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x in (-oo:+oo)
(60*x^2)/12 = 0
5*x^2 = 0 // : 5
x^2 = 0
x = 0
x = 0
| x=5/6+7*9 | | (x^2(-64))-81=0 | | f(x)=81x^2-1 | | 3(20+h)=81 | | (-3x^2y^3)(-5xy^2)= | | 60-8x= | | 9x/5 | | 40*25+k=2000 | | g(x)=9x-1 | | 76+76+81+81+2w=360 | | 76+76+81+81+v+w=360 | | 76+x+w=180 | | 76+w+v+81+x+y=360 | | 22.5+2x=22.75 | | 2/5+1/2(x+10)+4/5= | | 2/3+1/2(x+10)+4/5= | | v=203+-1w | | 76+w+v+81=360 | | 16=33x-16x^2 | | 4x^2-19x+12=0factor | | (5x^2)-7x-6=0 | | (m+30)+2m+3m+84+66=360 | | 1/7x=-4 | | 87.75/87.75 | | 87.75/6 | | 7k-20=3k+16 | | 87.75/2 | | 3x+2(2)=21 | | r^2+8r-12=0 | | (3x^2)(-5y^3)(6x)=a | | -19.95+1.10x= | | -7x+38=2(x-8) |