1. <span>700000 – 72 * (63760 : 40 * 15 – 15376) = </span>85552<span>
1) </span>63760 : 40 = 1594
2) 1594 * 15 = 23910
3) 23910 - 15376 = 8534
4) 72 * 8534 = 614448
5) 700000 - 614448 = 85552
2. <span>22269 : 3 * 17 * 7 – 39606 + 1338 = </span>845069<span>
1) 22269 : 3 = 7423
2) 7423 * 17 = 126191
3) 126191 * 7 = 883337
</span>4) 883337 - 39606 = 843731
5) 843731 + 1338 = 845069
X^2-7x
_____ - 1 = 11x/10
3
x^2-7x/3 = 11x/10 +1
x^2 - 7x/3 = 11x+10/10
10x^2-70x=33x+30
10x^2-70x-33x-30=0
10x^2-103x-30=0
D=(-103)^2 - 4 * 10 * (-30) = 11809
x1= 103-√11809 / 20 ≈ 103 - 109 / 20 = - 0.3
x2= 103+√11809 / 20 ≈ 103 + 109 / 20 = 10,6
24+262:X=2
286:Х=2
Х=286:2
Х=143
5дм 3см+3 м 7мм-63см 9мм=530мм+3007мм-639 мм=2898мм
12-8+5=9
1)12-8=4
2)4+5=9
4+8*4=36
1)4*8=32
2)4+32=36