Answer:
The other factor is 5x-2
Step-by-step explanation:
Using the factorisation method:
Two numbers that multiply to give -10 and add to give +3:
+5 and -2
[tex]5x^{2} +5x-2x-2[/tex]
[tex]5x(x+1) -2(x+1)[/tex]
[tex](x+1)(5x-2)[/tex]
So the other factor is 5x-2
I'm not sure about the second part of the question but I hope you understood how to deal with the first part.
