feat: Lesson six assignments

Author: Ezra Nyabuti

lesson_06/expression/src/expression_calculator.ts

@@ -2,9 +2,25 @@ export class ExpressionCalculator {
   /** Returns a calculation involving a, b, c, d, and e */
   calculate(a: number, b: number, c: number, d: number, e: number): number {
     // Implement your code here to return the correct value.
-    return 0;
-  }
 
+    // Function to implement: a / b + c * Math.pow(d, e)
+
+    const exponent = this.pow(d, e);
+    const division = this.divide(a, b);
+    const multiplication = this.multiply(c, exponent);
+    const result = this.add(division, multiplication);
+    console.log(`Result: ${result}`);
+    return result;
+  }
+  add(a: number, b: number): number {
+    return a + b;
+  }
+  multiply(a: number, b: number): number {
+    return a * b;
+  }
+  divide(a: number, b: number): number {
+    return a / b;
+  }
   pow(base: number, exponent: number): number {
     return Math.pow(base, exponent);
   }