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What is a^2+b^2 |
| Answer» (a + b)^2 = a^2 + b^2 + 2ab(a - b)^2 = a^2 + b^2 - 2abSo, a^2 + b^2 formula can bea^2 + b^2 = (a + b)^2 - 2aba^2 + b^2 = (a - b)^2 + 2ab | |