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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 4 - No. 24)
What is the factored form of x² - 100?
(x - 10)(x - 10)
(x + 10)(x + 10)
(x + 10)(x - 10)
(x + 50)(x - 2)
Forklaring
Use the difference of squares x²-100 is (x+10)(x-10)
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