Calculation Inputs
Step-by-Step Solution
(a + b)² = a² + 2ab + b²
Description of the Formula
The square of the sum formula states that when you square the sum of two numbers, the result is the sum of the squares of the numbers plus twice their product.
Formula History
The Babylonians and Greeks had a strong understanding of algebra and geometry, which laid the foundation for understanding and using such formulas. This formula is fundamental in algebra and is widely used in expansions, equations, and simplifications.
Video Tutorial
Practice Problems
Problem 1: Find the expansion of (5 + 3)².
Problem 2: If a = 7 and b = 2, find (a + b)².
Calculation History
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