Hello there, here are the questions and answers (which i wrote) Need to check the answers so please help :)
Factorize:
1) X^2 - 7X + 12
Answer i wrote: (X - 4) (X - 3)
2) X^2 + 5X - 6
Answer i wrote: (X + 6) (X - 1)
3) 3X^2 - X - 2
Answer i wrote: (3x - 2) (x + 1)
4) 25X^2 - 30X + 9
Answer i wrote: (5X - 3) (5X -3)
5) 36X^2 - 9Y^2
Answer i wrote: Square root both 36x^2 and 9y^2
=(6X - 3Y) (6X + 3Y)
That's it.
+26367 3)
3X^2 - X - 2
Answer i wrote: (3x - 2) (x + 1) no!
3X2 - X - 2 = (3x + 2) (x - 1)
+6248 1) X^2 - 7X + 12
Answer i wrote: (X - 4) (X - 3)
correct
2) X^2 + 5X - 6
Answer i wrote: (X + 6) (X - 1)
correct
3) 3X^2 - X - 2
Answer i wrote: (3x - 2) (x + 1)
incorrect (check signs)
4) 25X^2 - 30X + 9
Answer i wrote: (5X - 3) (5X -3)
correct
5) 36X^2 - 9Y^2
Answer i wrote: Square root both 36x^2 and 9y^2
=(6X - 3Y) (6X + 3Y)
correct
