Factorise (a2-3a)(a2-3a+7)+10
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Answer:
Let ( a² - 3a) = x
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(x)(x + 7) + 10
x² + 7x + 10
x² + (5 + 2)x + 10
x² + 5x + 2x + 10
x(x + 5) + 2(x + 5)
(x + 5)(x + 2)
(a² - 3a + 5)(a² - 3a + 2)
(a² - 3a + 5)(a² - 2a - a + 2)
(a² - 3a + 5){ a(a - 2) - (a - 2)}
(a² - 3a + 5)(a - 2)(a - 1)
I hope this will help you
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hope this will help you
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