diff --git a/golang/lab/lab4.go b/golang/lab/lab4.go
new file mode 100644
index 00000000..958db95d
--- /dev/null
+++ b/golang/lab/lab4.go
@@ -0,0 +1,54 @@
+package main
+
+import (
+ "fmt"
+ "math"
+)
+
+func CalculateY(a, b, x float64) float64 {
+ return math.Pow((a*x+b), 1.0/3.0) / math.Pow(math.Log10(x), 2)
+}
+
+func TaskA(a, b, xStart, xEnd, step float64) []float64 {
+ var result []float64
+ for x := xStart; x <= xEnd; x += step {
+  result = append(result, CalculateY(a, b, x))
+ }
+ return result
+}
+
+func TaskB(a, b float64, xValues []float64) []float64 {
+ var result []float64
+ for _, x := range xValues {
+  result = append(result, CalculateY(a, b, x))
+ }
+ return result
+}
+
+func main() {
+ a := 2.0
+ b := 3.0
+
+ xStart := 1.0
+ xEnd := 5.0
+ step := 1.0
+ resultsA := TaskA(a, b, xStart, xEnd, step)
+ fmt.Println("Результаты TaskA:")
+ for i, y := range resultsA {
+  fmt.Printf("x = %.2f, y = %.6f\n", xStart+float64(i)*step, y)
+ }
+
+ fmt.Println()
+
+ xValues := []float64{1.5, 2.5, 3.5, 4.5}
+ resultsB := TaskB(a, b, xValues)
+ fmt.Println("Результаты TaskB:")
+ for i, y := range resultsB {
+  fmt.Printf("x = %.2f, y = %.6f\n", xValues[i], y)
+ }
+ fmt.Println()
+ x := 3.0
+ resultY := CalculateY(a, b, x)
+ fmt.Printf("Результат CalculateY: x= %.2f, y = %.6f\n", x, resultY)
+}
+
diff --git a/golang/lab/lab6.go b/golang/lab/lab6.go
new file mode 100644
index 00000000..c6f945f9
--- /dev/null
+++ b/golang/lab/lab6.go
@@ -0,0 +1,35 @@
+package main
+
+import "fmt"
+
+type Dog struct {
+ Name  string
+ Breed string
+ Age   int
+}
+
+func NewDog(name string, breed string, age int) Dog {
+ return Dog{Name: name, Breed: breed, Age: age}
+}
+func (d Dog) GetAge() int {
+ return d.Age
+}
+func (d *Dog) SetAge(age int) {
+ d.Age = age
+}
+func (d Dog) GetInfo() string {
+ return fmt.Sprintf("Name: %s, Breed: %s, Age: %d", d.Name, d.Breed, d.Age)
+}
+
+func main() {
+ dog1 := NewDog("Buddy", "Golden Retriever", 3)
+ fmt.Println(dog1.GetInfo())
+
+ fmt.Println("Возраст:", dog1.GetAge())
+ dog1.SetAge(5)
+ fmt.Println("Новый возраст:", dog1.GetAge())
+ fmt.Println(dog1.GetInfo())
+
+ dog2 := NewDog("Bella", "Labrador", 7)
+ fmt.Println(dog2.GetInfo())
+}
diff --git a/golang/lab/lab7.go b/golang/lab/lab7.go
new file mode 100644
index 00000000..ea2c5b2e
--- /dev/null
+++ b/golang/lab/lab7.go
@@ -0,0 +1,79 @@
+package main
+
+import (
+	"fmt"
+)
+
+type Product interface {
+	GetPrice() float64
+	SetPrice(price float64)
+	ApplyDiscount(percent float64)
+	GetDetails() string
+}
+
+type Book struct {
+	title  string
+	author string
+	price  float64
+}
+
+func (b *Book) GetPrice() float64 {
+	return b.price
+}
+
+func (b *Book) SetPrice(price float64) {
+	b.price = price
+}
+
+func (b *Book) ApplyDiscount(percent float64) {
+	b.price -= b.price * percent / 100
+}
+
+func (b *Book) GetDetails() string {
+	return fmt.Sprintf("Book: %s, Author: %s, Price: %.2f", b.title, b.author, b.price)
+}
+
+type Electronics struct {
+	name  string
+	brand string
+	price float64
+}
+
+func (e *Electronics) GetPrice() float64 {
+	return e.price
+}
+
+func (e *Electronics) SetPrice(price float64) {
+	e.price = price
+}
+
+func (e *Electronics) ApplyDiscount(percent float64) {
+	e.price -= e.price * percent / 100
+}
+
+func (e *Electronics) GetDetails() string {
+	return fmt.Sprintf("Electronics: %s, Brand: %s, Price: %.2f", e.name, e.brand, e.price)
+}
+
+func CalculateTotalPrice(products []Product) float64 {
+	total := 0.0
+	for _, product := range products {
+		total += product.GetPrice()
+	}
+	return total
+}
+
+func main() {
+	book := Book{title: "The Go Programming Language", author: "Alan Donovan", price: 50.00}
+	electronics := Electronics{name: "Laptop", brand: "XYZ", price: 1200.00}
+
+	fmt.Println(book.GetDetails())
+	fmt.Println(electronics.GetDetails())
+
+	products := []Product{&book, &electronics}
+	totalPrice := CalculateTotalPrice(products)
+	fmt.Printf("Общая стоимость: %.2f\n", totalPrice)
+	fmt.Println()
+	book.ApplyDiscount(10)
+	fmt.Println("Цена со скидкой:", book.GetDetails())
+}