x²+2x-63
Factorise
please answer
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Answer:
The solution is (x-7)(x+9)
Answered by
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Factors of 63 are 7 and 9. So, (1) can be written as
x^2 - 9x + 7x - 63 = 0 or
x(x-9) + 7(x-9) = 0, or
(x+7)(x-9) = 0. Answer.
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