diff --git a/08-isAnagram/index.js b/08-isAnagram/index.js
index 918308a..84fb936 100644
--- a/08-isAnagram/index.js
+++ b/08-isAnagram/index.js
@@ -1,4 +1,13 @@
 export function isAnagram(word1, word2) {
   // implementar logica aqui
-  
-}
\ No newline at end of file
+  if (word1.length !== word2.length) {
+    return false;
+  }
+
+  var str1 = word1.toLowerCase().toUpperCase().split('').sort().join('');
+  var str2 = word2.toLowerCase().toUpperCase().split('').sort().join('');
+  if (str1 === str2) {
+    return true;
+  }
+  return false;
+}
diff --git a/09-mostRepeatedChar/index.js b/09-mostRepeatedChar/index.js
index b113ed8..f29f390 100644
--- a/09-mostRepeatedChar/index.js
+++ b/09-mostRepeatedChar/index.js
@@ -1,4 +1,27 @@
-export function mostUsedChar(text) {
-    // implementar logica aqui
-    return ""
-}
\ No newline at end of file
+function mostUsedChar(text) {
+  // implementar logica aqui
+  text = text.split('').sort();
+  let cont1 = 0;
+  let cont2 = 0;
+  let maior = '';
+
+  for (let i = 1; i < text.length; i++) {
+    if (text[i] != text[i - 1]) {
+      if (cont2 > cont1) {
+        cont1 = cont2;
+        maior = text[i - 1];
+      }
+      cont2 = 1;
+    } else {
+      cont2++;
+    }
+  }
+
+  return maior;
+}
+
+// Resultados esperados
+console.log(mostUsedChar('fdgdfgff'), 'f'); // f
+console.log(mostUsedChar('Lorem ipsum'), 'm'); // m
+console.log(mostUsedChar('adsassdasd'), 's'); // s
+console.log(mostUsedChar('testeeeee'), 'e'); // e