449 plus 373 equals 822 and you do have to regroup.
449
313 + 192 = 505
926 + 313 = 1239
3151222
313
449
6.46940679 × 1013
if you meant: (-3)x²-5x+1=8x²-2x-9x=(±√(449)-3)/22 ≈ -0.1363636363636 ± 1.9263291000379x1=(√(449)-3)/22 ≈ 0.8268009136553x2=(-√(449)-3)/22 ≈ -1.0995281863826
Assuming the rules of BODMAS, 132 + 140 + 145 + (128/4) = 449.
1% of 449 = 1% * 449 = 0.01 * 449 = 4.49
449% = 449/100 in fraction