फैक्टराइज टू एक्स स्क्वायर प्लस 11 एक्स माइनस ट्वेंटी वन
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English please
Step-by-step explanation:
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Answer:
2x^2 + 11x -21=(2x-3)(x+7)
Step-by-step explanation:
2x^2 + 11x -21
= 2x^2 + 14x - 3x - 21
=2x(x+7) -3(x+7)
=(2x-3)(x+7)
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