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2.5;0.624
2.5;143
(-x)^3+81*x = 0;x
x
(-x)^4+81*x^2 = 0;x
x
4787.64;143
| 10x+5x=30x | | 3/5÷(2/3-1/5) | | y=x^3-9x^2-24x-21 | | y=x^3-9x^2+24x-21 | | 15x+3x=8x | | 6x/7-5x/7 | | -7/(x-7)-14/x^2=0 | | Y=3.1x-3.3 | | -2/3m=- | | 3s-7=2+4s | | 6cos(2w)=6cos^2(w)-3 | | 4(3s+3)=156 | | 9p-20=-29+6p | | 4(2l+2)=64 | | Y÷-3=1/6 | | 4x+77=9x-8 | | 9=x*x^2 | | 20=x*x^2 | | 163-5x=31x+23 | | 72-3x=12-10x | | -12=-6x*x^2 | | x^2+3x+2-4=6 | | y=-6x-x^2-8 | | 2/4=1/8 | | 5/9x(-7/8) | | 4x=2x-15 | | x^2-x-2.25=0 | | 5=x^2*x | | 3=x^2*x | | 6/x^2=0 | | 4x-(8x+7)=8x-9 | | 16/7÷8/49 |