Solve the following equation
using factorisation methed
(1) x²- 41x+400 = 0
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Step-by-step explanation:
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Answer:
16 or 25
Step-by-step explanation:
x² - 41x + 400 = 0
x² - 25x - 16x + 400 = 0
x(x - 25) - 15(x - 16) = 0
(x - 25) (x - 16) = 0
thus,
x - 25 = 0 or x - 16 = 0
x = 25 or x = 16
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