Question

СРОЧНО ДОПОМОЖІТЬ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Объяснение:

№3

а)

(3¹⁰ * 27³)/9⁹ = (3¹⁰ * (3³)³)/(3²)⁹ = (3¹⁰ * 3⁹)/3¹⁸=

3¹⁹/3¹⁸ = 3¹ = 3

б)

(5 1/3)⁷ * (3/16)⁷ = (16/3)⁷ * (3/16)⁷ = (1/1)⁷ * (1/1)⁷ =

1 * 1 = 1

№4

а) 9х² * 7х = (9 * 7) * (х² * х) = 63 * х³ = 63х³

в) -0,4mn³ * 3m²n³c = (-0,4 * 3) * (m * m²) * (n³ * n³) * c = -1,2 * m³ * n⁶ * c = -1,2m³n⁶c

c) (5x²у³)⁴ = 5⁴ * (х²)⁴ * (у³)⁴ = 625 * х⁸ * у¹² = 625х⁸у¹²

№5

а)

3х²у * (-2ху²)² = 3х²у * (-2)² * х² * (у²)² =

3х²у * 4 * х² * у⁴ = (3 * 4) * ( х² * х²) * (у * у⁴) =

12 * х⁴ * у⁵ = 12х⁴у⁵

в)

(2/5ху²)² * (-2 1/2х²у)² =

(2/5)² * х² * (у²)² * (-2 1/2)² * (х²)² * у² =

4/25 * х² * у⁴ * 25/4 * х⁴ * у² =

(4/25 * 25/4) * (х² * х⁴) * (у⁴ * у²) =

1 * х⁶ * у⁶ = 1х⁶у⁶ = х⁶у⁶