3u^2-42uv+135v^2
(a+b)²
solve -4x+ 7y=-1
x-2y=-4
1.25x=x+8
(3^5)(9^6) = 3^(2x).
2^x x 1/4^2x=16
middle term split of 3m^2+7n_516
2134122
171714.2399
.2134122
26527779
4969294.7611
.26527779
7.62909796285356420 ...
1665946
29423284
26157104
5615252
4655674
7267819
3 - 4 1/7
