Пошаговое объяснение:
1. 8¹⁶⁺⁵⁻¹⁸ = 8³
10¹⁰⁻¹⁻⁵ = 10⁴
(-2)⁷⁺⁴⁻⁸ = (-2)³ = -8
(0,3)¹⁰⁺⁷⁻⁸⁻⁶ = 0,3³
2.
(2b-3)(5b+7)+21 = 10b² - 15b + 14b - 21 + 21 = 10b² - b
5a - (a+1)(4a+1) = 5a - 4a² - 4a - a - 1 = -4a² - 1
3.
3(2 - x) - x = 5
6 - 3x - x = 5
4x = 1
x = 0,25
24 - 10x - 8 = 6
10x = 10
x = 1
-88 + 16x + 40 = 15x - 12
x = -12 + 48
x = 36
1.a)8^16•8^5:8^18= 8^3
b)10^10:10•10^5=10^4
2.a)10b^2+14b-15b-21+21=10b^2-b
b)5a-4a^2-a-4a-1=a-4a^2-1
3.a)24-2(5x+4)=6
24-10x-8=6
-10x=-24+8+6
-10x=-10
x=1
b)-8(11-2x)+40=3(5x-4)
-88+16x+40=15x-12
16x-15x=88-40-12
x=36
Пошаговое объяснение:
1. 8¹⁶⁺⁵⁻¹⁸ = 8³
10¹⁰⁻¹⁻⁵ = 10⁴
(-2)⁷⁺⁴⁻⁸ = (-2)³ = -8
(0,3)¹⁰⁺⁷⁻⁸⁻⁶ = 0,3³
2.
(2b-3)(5b+7)+21 = 10b² - 15b + 14b - 21 + 21 = 10b² - b
5a - (a+1)(4a+1) = 5a - 4a² - 4a - a - 1 = -4a² - 1
3.
3(2 - x) - x = 5
6 - 3x - x = 5
4x = 1
x = 0,25
24 - 10x - 8 = 6
10x = 10
x = 1
-88 + 16x + 40 = 15x - 12
x = -12 + 48
x = 36
1.a)8^16•8^5:8^18= 8^3
b)10^10:10•10^5=10^4
2.a)10b^2+14b-15b-21+21=10b^2-b
b)5a-4a^2-a-4a-1=a-4a^2-1
3.a)24-2(5x+4)=6
24-10x-8=6
-10x=-24+8+6
-10x=-10
x=1
b)-8(11-2x)+40=3(5x-4)
-88+16x+40=15x-12
16x-15x=88-40-12
x=36