7a-2=8+12a
(2^x-3)^x+4=(2^x-2)^x-7
do rufini whit numbers 1 4 3 -4 -4
(x + 3)^2 + 4 = 40
3/4 X 8 1/3
-5d-8=-d+12
x^2+5x+6>0
(-48)*(-17)*5**0*(-7)
-47a^3+45a^2b-4ab^2+40b^3
3c + 8 = -4c + 8
