h^2 - h + 8 factorise
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Step-by-step explanation:
use the formula
-b+√(b^2-4ac)/2a, -b-√(b^2-4ac)/2a
a=1,b=-1,c=8
-(-1)+√(1-4(1)(-8)/2, -(-1)-√(1-4(1)(-8)/2
(1+√33)/2,(1-√33)/2
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