-7.7х-1.5=0.3
-7.7х=1.8
х=-0.23
4ху + 2 (х - у)² = 4ху + 2х² - 4ху + 2у² = 2х² + 2у² = 2 * (√7)² + 2 * (√5)² =
= 2 * 7 + 2 * 5 = 14 + 10 = 24
Графики на фотографиях. всего хорошего)
Solve for x over the real numbers:
x^2+4 = 6-x
Subtract 6-x from both sides:
x^2+x-2 = 0
The left hand side factors into a product with two terms:
(x-1) (x+2) = 0
Split into two equations:
x-1 = 0 or x+2 = 0
Add 1 to both sides:
x = 1 or x+2 = 0
Subtract 2 from both sides:
Answer: |
| x = 1 or x = -2
Удачи!
54 • (-1/3) ^3 = 54•(-1/27) = - 54•1/27= -2