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Donato White

Lvl 10
3y ago
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14y ago

This factorizes simply if it were x2-11x+10. This is because (-11) squared, minus 4x1x(+10) is 81 is a perfect square. Since it doesn't factorize simply, you have to find the 2 roots given by the usual formula [11+- 4Sqrt(121+40)]/2. Call these two roots A and B. Then the factorization is (x-A)(x-B).

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Q: How do you factorise x squared-11x-10?
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