Mathematics for IGCSE & O level - Algebraic Manipulation (Section 1 - No. 46)
What is the factored form of the quadratic expression x² - 10x + 24?
(x-6)(x-4)
(x+6)(x+4)
(x-12)(x+2)
(x+12)(x-2)
Explanation
Two numbers that add up to -10 and multiply to 24 are -6 and -4. Hence (x-6)(x-4).
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