<span>20 - 12y
Simplify parentheses: 4 - 5y - 7y + 16
Combine similar terms: 4 + 16 - 5y - 7y
Simplify: 20 - 12y</span>
Try to get it into form
(ax+b)(cx+d)
a,b,c,d can be negative or positive
3x^2+7x+2
2 and 7 are positive so b and d will be positive as well
3 is prime so we have to have
(3x+?)(1x+?)
2 is also prime
try
(3x+2)(1x+1), expanded it is 3x^2+5x+2, nope
(3x+1)(x+2), expanded is 3x^2+7x+2, yep
mostly a trial and error sort of thing
after some practice, it might get easier for you to see
Maybe D?????????? Hope I helped!!!!!
