Asked by Marian
Factorise the expressions
9y^2-25
x^2-x-12
I'm totally stuck!
9y^2-25
x^2-x-12
I'm totally stuck!
Answers
Answered by
bobpursley
The first is a difference of two squares.
(3x-5)(3x+5)
The second is
(x-4)(x+3) anytime the last term is negative, you have factors with different signs
(3x-5)(3x+5)
The second is
(x-4)(x+3) anytime the last term is negative, you have factors with different signs
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