What non-zero integer must be placed in the square so that the simplified product of these two binomials is a binomial: ?
(3x + 12)(12x - ___)
+2159
What non-zero integer must be placed in the square so that the simplified product of these two binomials is a binomial: ?
(3x + 12)(12x - ___)
Place 48 in the space.
The inside terms (12 times 12x) result in +144x.
You need a number in the blank space to make
the outside terms (___ times 3x) result in –144x. 144 / 3 = 48
.
