Factoring Quadratics Mentally The Sum & Product Method [Roots and factoring Part 3]
Автор: Let's Get Learning
Загружено: 2025-11-09
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Stop using slow trial and error to factor quadratics. This video teaches you the Vedic "Sum & Product Method" to factor simple quadratic expressions of the form x^2 + bx + c mentally.
This foundational algebraic technique treats factoring as a simple puzzle. You will learn to find two numbers that:
Multiply to give the last term (c).
Add to give the middle coefficient (b).
We'll guide you through examples with all positive coefficients (like x^2 + 8x + 15) and harder examples with negative coefficients (like x^2 - 7x + 12 and x^2 + 3x - 10). You'll learn how to use the signs as your most important clue. A negative product means the numbers have different signs, while a positive product means they have the same sign. This mental check narrows down your search immensely.
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