solve for x (2*3=1.5)^x
sum_(k=1)^(2 n) (-1)^k 2^(k - 1) binomial(2 n, k) = 0
3x^2+8x+1=0
fully simplify 5xy+5x+4+2yx+x+y
Solve the inequalities represent all in number line 3x-5<5x-3
2 * 3 - 6 + 7 * 8 + 50/10
9/14 x3
9/14
3
