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rishabh bhatiya
Questions (2)
factorize
x^4 - (x-z)^4
1 answer
343 views
(x + 3)(x - 5) < 0
=x * x + x * -5 + 3 * x + 3 * -5 = x ^ 2 + 3x - 5x - 15 = x ^ 2 - 2x - 15 < 0 as two of the terms have a minus
1 answer
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Answers (1)
x^2-2x-15>0