factorise a2+ 6a- 7
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a² + a -7a -7
a(a + 1) -7(a + 1)
(a-7)(a+1)
hope so this helps you.
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Answer:
Step-by-step explanation:
a² + a -7a -7
a(a + 1) -7(a + 1)
(a-7)(a+1)
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