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+### squareSum
+
+Squares each number passed into it and then sums the results together.
+
+Use `Array.prototype.reduce()` to iterate over numbers and to declare an accumulater.
+Use `Math.pow()` to calculate power of each number and add all numbers into acculmulator.
+
+```js
+const squareSum = (arr) => arr.reduce((squareSum, number) =>
+	squareSum + Math.pow(number, 2), 0);
+```
+
+```js
+squareSum([1, 2, 2]); // 9
+```
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