x - 2y = -4
5x + y = 10
Solve for x:5(2x-1)=3(4x+3)
x*y=0.199912332675918863522787694816
find square roots of 3+4i
0.04/0.82
550+45%
1+2+2^2+---+2^n-1=2^n-1
Find fouth root of 4+3i
9.
Use mathematical induction
to prove that
1
12 + 32 + 52 + ⋯ + (2𝑛 − 1)2 =
3
...
(7^-3) x (5^2)/(5^-3 x 7^2)^3