Asked by Jonathan
Factorise:
a)x squared - 5x
b)x squared - 81
a)x squared - 5x
b)x squared - 81
Answers
Answered by
Reiny
x^2 - 5x
= x(x-5) simple common factor
x^2 - 81
= (x+9)(x-9) very standard difference of squares
Are you just learning to factor?
These are very easy.
= x(x-5) simple common factor
x^2 - 81
= (x+9)(x-9) very standard difference of squares
Are you just learning to factor?
These are very easy.
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