Factorise and solve x^2 -8x=15=0

x=3 or x=5

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Nadia has £5 to buy pencils and rulers. Pencils are 8p each. Rulers are 30p each. She says “I will buy 15 pencils. Then I will buy as many rulers as possible. With my change I will buy more pencils.” How many pencils and how many rulers does she buy?


What is algebra?


Solve the equation x^{2}-2x-15 = 0


Solve... 8x + 2 = 3x - 8


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