Question

-3x^2+16x+12 factor it

Answer 1

when x^2 has a coefficient: multiply a and c (-3 and 12 here)
find two number that add up to b (16 here) and multiply to a*c (-36 here)
split b into these two number
factor

here:
-36 is 18-2
so we can rewrite the equation as:
-3x^2+18x-2x+12
and factor the rest

Answer 2

i mean -36 is -2*18 and 16 is 18-2

Answer 3

then...

Answer 4

-3x^2+18x-2x+12
-3x(x-6)-2(x-6)
(-3x-2)(x-6)

Answer 5

ok thank you