diff --git a/3-extra/1-factorial.js b/3-extra/1-factorial.js
index 31f8052c..82e25dfa 100644
--- a/3-extra/1-factorial.js
+++ b/3-extra/1-factorial.js
@@ -9,8 +9,17 @@
 */
 
 function factorial(input) {
-    // TODO
+    let result = 1;
+    if (input === 0 || input === 1) {
+        return input;
+    } else {
+        for (let i = input; i >= 1; i--) {
+            result = result * i;
+        }
+    }
+    return result;
 }
+console.log(factorial(3))
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/3-extra/2-array-of-objects.js b/3-extra/2-array-of-objects.js
index ee57960f..4c271638 100644
--- a/3-extra/2-array-of-objects.js
+++ b/3-extra/2-array-of-objects.js
@@ -11,7 +11,7 @@
 */
 
 function getHighestRatedInEachGenre(books) {
-    // TODO
+
 }
 
 
diff --git a/3-extra/3-fibonacci.js b/3-extra/3-fibonacci.js
index 9ef9aec7..0636c69d 100644
--- a/3-extra/3-fibonacci.js
+++ b/3-extra/3-fibonacci.js
@@ -14,8 +14,17 @@
 */
 
 function generateFibonacciSequence(n) {
-    // TODO
-}
+    if (n === 1) {
+        return [0, 1];
+    }
+    else {
+        let result = generateFibonacciSequence(n - 1);
+        result.push(result[result.length - 1] + result[result.length - 2]);
+        return result;
+    }
+};
+console.log(generateFibonacciSequence(10));
+//I used google
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 test("should return the first 10 numbers in the Fibonacci Sequence", () => {