diff --git a/matrix.c b/matrix.c
index 4d42efd..0aaaae3 100644
--- a/matrix.c
+++ b/matrix.c
@@ -113,4 +113,25 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
 // TODO implement
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {
+    if (matrix1.cols != matrix2.rows || matrix1.buffer == NULL || matrix2.buffer == NULL)
+    {
+        return createMatrix(0, 0);
+    }
+
+    int rows = matrix1.rows, cols = matrix2.cols;
+    Matrix resMat = createMatrix(rows, cols);
+
+    for (size_t rowIdx = 0; rowIdx < rows; rowIdx++)
+    {
+        for (size_t colIdx = 0; colIdx < cols; colIdx++)
+        {
+            int curCellVal = 0;
+            for (size_t k = 0; k < matrix1.cols; k++)
+            {
+                curCellVal += getMatrixAt(matrix1, rowIdx, k) * getMatrixAt(matrix2, k, colIdx);
+            }
+            setMatrixAt(curCellVal, resMat, rowIdx, colIdx);
+        }
+    }
+    return resMat;
 }
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